Carbostyril derivative and platelets aggregation inhibitory agent

ABSTRACT

A carbostyril derivative or salt thereof of the formula ##STR1## the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton being a single bond or a double bond. The carbostyril derivatives are useful as a platelets aggregation inhibitory agent.

FIELD OF THE INVENTION

The present invention relates to a carbostyril derivative and a platelets aggregation inhibitory agent containing said derivative as an active ingredient.

BACKGROUND ART

Compounds having structural formulas similar to that of the carbostyril derivative of the present invention are disclosed in the following prior art literature (patents).

The prior art by the present applicant

U.S. Pat. Nos. 4,070,470, 4,216,220, 4,313,947, 4,298,739, 4,277,479, 4,435,404, 5,008,274 and 5,053,514; EP-A-8910919; Japanese Patent Application Kokai (Laid-open) Nos. 50-82218, 50-106977, 50-142576, 50-151881, 54-30180, 54-30183, 54-30184, 55-79371, 57-9780, 57-14574, 57-93962, 57-159778, 58-59980, 56-8319, 57-80322, 52-108980 and 63-290821.

The prior art by other applicants

Japanese Patent Application Kokai (Laid-open) No. 56-16470 (U.S. Pat. No. 4329347); Japanese Patent Application Kokai (Laid-open) No. 56-36452; Japanese Patent Application Kokai (Laid-open) No. 59-31753 (EP-A-96006A); U.S. Pat. No. 3994900; BE-A-859415; and EP-A-71150 [Japanese Patent Application Kokai (Laid-open) No. 58-24559].

The structural formulas of the carbostyril compounds disclosed in the above prior art literature (patents) are similar to that of the carbostyril derivative of the present invention, but are different from the latter in the side chain structures. Although some of the carbostyril compounds disclosed in the prior art literature, similarly to the carbostyril derivative of the present invention, have a platelets aggregation inhibitory activity, the compounds of the prior art include also those showing different pharmacological activities such as antithrombotic activity, antihistaminic activity, antiarrhythmic activity, cardiotonicactivity, α- and β-adrenergic blocking activity and the like.

[DISCLOSURE OF THE INVENTION]

The carbostyril derivative of the present invention is represented by the following general formula (1). ##STR2## {wherein A represents a lower alkylene group.

R represents a group ##STR3## a group ##STR4## or a group ##STR5## [wherein R¹ represents a group ##STR6## (wherein l and m independently represent 0 or 1. B represents a lower alkylene group. Each of R⁷ and R⁸, which may be the same or different, represents a hydrogen atom, a lower alkyl group which may have a hydroxyl group, or a lower alkanoyl group. Further, R⁷ and R⁸ may form a five- or six-membered saturated heterocyclic ring, together with the nitrogen atom to which they bond and further with or without a nitrogen, oxygen or sulfur atom which may be present between R⁷ and R⁸. Said heterocyclic ring may have 1-3 substituents selected from the group consisting of a hydroxyl group, a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group, a lower alkyl group-substituted or unsubstituted amino group, a lower alkoxy-lower alkoxy group, an oxo group and a lower alkyl group-substituted or unsubstituted aminocarbonyl group. Said heterocylic ring may also have a lower alkylenedioxy group as a substituent.); a lower alkoxycarbonyl group-substituted lower alkyl group; a carboxy group-substituted lower alkyl group; a lower alkyl group having, as a substituent, a lower alkyl group-substituted or unsubstituted aminocarbonyl group; a hydroxyl group-containing lower alkyl group; an imidazolyl-substituted lower alkyl group; a pyridyl-substituted lower alkyl group; a pyrrolidinyl-lower alkyl group which may have, as substituent(s) on the pyrrolidine ring, 1-3 groups selected from the group consisting of a lower alkyl group, a lower alkoxy-lower alkoxy group and a hydroxyl group; or a group--SO₂ --D--R⁹ (wherein D represents a lower alkylene group. R⁹ represents a five- or six-membered saturated or unsaturated heterocylic ring residue having from 1-3 halogen atoms or nitrogen atoms. Said heterocyclic ring may have, as a substituent, a hydroxyl group, a lower alkoxy-lower alkoxy group, a lower alkoxycarbonyl group, or a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group.).

R² represents a hydrogen atom; a cycloalkyl-lower alkyl group; a cycloalkyl group; a phenyl group; a phenyl-lower alkyl group which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group, a cyano group, a carboxy group and a lower alkoxy group; a pyridyl-substituted lower alkyl group; a thienyl-substituted lower alkyl group; a cycloalkylcarbonyl group; a benzoyl group; a tetrahydropyranyl-substituted lower alkyl group; a phenyl-lower alkylsulfonyl group; a phenylsulfonyl group; or a cycloalkyl-lower alkylsulfonyl group.

R¹ and R² may form a pyrrolidinyl group together with the nitrogen atom to which they bond. Said pyrrolidinyl group has 1-2 substituents selected from the group consisting of a hydroxyl group, a lower alkoxy-lower alkoxy group, a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group, a lower alkoxycarbonyl group, a piperidinylcarbonyl group and a cycloalkyl-lower alkyl group-substituted or unsubstituted aminocarbonyl group.

R³ represents a hydrogen atom; a lower alkyl group which may have a hydroxyl group; a carboxy-substituted lower alkyl group; a lower alkoxycarbonyl group-substituted lower alkyl group; a group ##STR7## (wherein E represents a lower alkylene group which may have a hydroxyl group. n represents 0 or 1. Each of R¹⁰ and R¹¹, which may be the same or different, represents a hydrogen atom; a lower alkyl group which may have a hydroxyl group; or a lower alkanoyl group. Further, R¹⁰ and R¹¹ may form a five- or six-membered saturated heterocyclic ring, together with the nitrogen atom to which they bond and further with or without a nitrogen, oxygen or sulfur atom which may be present between R¹⁰ and R¹¹. Said heterocyclic ring may have 1-3 substituents selected from the group consisting of a hydroxyl group; an oxo group; a lower alkoxy-lower alkoxy group; a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group; and a lower alkyl-substituted or unsubstituted amino group. Said heterocylic ring may also have a lower alkylenedioxy group as a substituent.); or a pyrrolidinyl-lower alkyl group which may have, as substituent(s) on the pyrrolidine ring, 1-3 groups selected from the groupconsisting of a lower alkyl group, a lower alkoxy-lower alkoxy group and a hydroxyl group.

R⁴ represents a hydrogen atom; a cycloalkyl group; a cycloalkyl-lower alkyl group; a phenyl-lower alkyl group which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group and a lower alkoxy group; a phenyl group; a thienyl-substituted lower alkyl group; a pyridyl-substituted lower alkyl group; an imidazolyl-substituted lower alkyl group; or a tetrahydropyranyl-substituted lower alkyl group.

Y represents a group ##STR8## a group ##STR9## or a group ##STR10##

Each of R⁵ and R⁶, which may be the same or different, represents a hydrogen atom; a lower alkyl group; a cycloalkyl group; a cycloalkyl-lower alkyl group; or a piperidinyl-lower alkyl group which may have, as a substituent on the piperidinyl ring, a lower alkoxy-lower alkoxy group or a hydroxyl group.].

W represents an oxygen atom or a sulfur atom.

The carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton represents a single bond or a double bond.}.

Of the carbostyril derivatives represented by the above general formula (1), the compounds represented by the following general formula (1A) are novel compounds not disclosed in any literature yet. ##STR11## {wherein A represents a lower alkylene group.

R^(A) represents a group ##STR12## a group ##STR13## or a group ##STR14## [wherein R¹ represents a group ##STR15## q(wherein l and m independently represent 0 or 1. B represents a lower alkylene group. Each of R⁷ and R⁸, which may be the same or different, represents a hydrogen atom, a lower alkyl group which may have a hydroxyl group, or a lower alkanoyl group. Further, R⁷ and R⁸ may form a five- or six-membered saturated heterocyclic ring, together with the nitrogen atom to which they bond and further with or without a nitrogen, oxygen or sulfur atom which may be present between R⁷ and R⁸. Said heterocyclic ring may have 1-3 substituents selected from the group consisting of a hydroxyl group, a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group, a lower alkyl group-substituted or unsubstituted amino group, a lower alkoxy-lower alkoxy group, an oxo group and a lower alkyl group-substituted or unsubstituted aminocarbonyl group. Said heterocylic ring may also have a lower alkylenedioxy group as a substituent.); a lower alkoxycarbonyl group-substituted lower alkyl group; a carboxy group-substituted lower alkyl group; a lower alkyl group having, as a substituent, a lower alkyl group-substituted or unsubstituted aminocarbonyl group; a hydroxyl group-containing lower alkyl group; an imidazolyl-substituted lower alkyl group; a pyridyl-substituted lower alkyl group; a pyrrolidinyl-lower alkyl group which may have, as substituent(s) on the pyrrolidine ring, 1-3 groups selected from the group consisting of a lower alkyl group, a lower alkoxy-lower alkoxy group and a hydroxyl group; or a group --SO₂ --D--R⁹ (wherein D represents a lower alkylene group. R⁹ represents a five- or six-membered saturated or unsaturated heterocylic ring residue having 1-3 halogen atoms or nitrogen atoms. Said heterocyclic ring may have, as a substituent, a hydroxyl group, a lower alkoxy-lower alkoxy group, a lower alkoxycarbonyl group, or a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group.).

R² represents a hydrogen atom; a cycloalkyl-lower alkyl group; a cycloalkyl group; a phenyl group; a phenyl-lower alkyl group which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group, a cyano group, a carboxy group and a lower alkoxy group; a pyridyl-substituted lower alkyl group; a thienyl-substituted lower alkyl group; a cycloalkylcarbonyl group; a benzoyl group; a tetrahydropyranyl-substituted lower alkyl group; a phenyl-lower alkylsulfonyl group; a phenylsulfonyl group; or a cycloalkyl-lower alkylsulfonyl group.

R¹ and R² may form a pyrrolidinyl group together with the nitrogen atom to which they bond. Said pyrrolidinyl group has 1-2 substituents selected from the group consisting of a hydroxyl group, a lower alkoxy-lower alkoxy group, a lower alkyl group having a lower alkoxy-lower alkoxy group or a hydroxyl group, a lower alkoxycarbonyl group, apiperidinylcarbonyl group and a cycloalkyl.-lower alkyl group-substituted or unsubstituted aminocarbonyl group.

R³ represents a hydrogen atom; a lower alkyl group which may have a hydroxyl group; a carboxy-substituted lower alkyl group; a lower alkoxycarbonyl group-substituted lower alkyl group; a group ##STR16## (wherein E represents a lower alkylene group which may have a hydroxyl group. n represents 0 or 1. Each of R¹⁰ and R¹¹, which may be the same or different, represents a hydrogen atom; a lower alkyl group which may have a hydroxyl group; or a lower alkanoyl group. Further, R¹⁰ and R¹¹ may form a five- or six-membered saturated heterocyclic ring, together with the nitrogen atom to which they bond and further with or without a nitrogen, oxygen or sulfur atom which may be present between R¹⁰ and R¹¹. Said heterocyclic ring may have 1-3 substituents selected from the group consisting of a hydroxyl group; an oxo group; a lower alkoxy-lower alkoxy group; a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group; and a lower alkyl-substituted or unsubstituted amino group. Said heterocylic ring may also have a lower alkylenedioxy group as a substituent.); or a pyrrolidinyl-lower alkyl group which may have, as substituent(s) on the pyrrolidine ring, 1-3 groups selected from the group consisting of a lower alkyl group, a lower alkoxy-lower alkoxy group and a hydroxyl group.

R⁴ represents a hydrogen atom; a cycloalkyl group; a cycloalkyl-lower alkyl group; a phenyl-lower alkyl group which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group and a lower alkoxy group; a phenyl group; a thienyl-substituted lower alkyl group; a pyridyl-substituted lower alkyl group; an imidazolyl-substituted lower alkyl group; or a tetrahydropyranyl-substituted lower alkyl group.

Y represents a group ##STR17## a group ##STR18## or a ##STR19##

Each of R⁵ and R⁶ which may be the same or different, represents a hydrogen atom; a lower alkyl group; a cycloalkyl group; a cycloalkyl-lower alkyl group; or a piperidinyl-lower alkyl group which may have, as a substituent on the piperidinyl ring, a lower alkoxy-lower alkoxy group or a hydroxyl group.].

W represents an oxygen atom or a sulfur atom.

The carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton represents a single bond or a double bond.

When W is an oxygen atom and R¹ is a hydroxyl group-containing lower alkyl group, R² must not be any of a hydrogen atom, a cycloalkyl group and a phenyl-lower alkyl group which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a lower alkoxy group and a halogen atom.

When R¹ and R² form a pyrrolidinyl group, the pyrrolidinyl group must not be a pyrrolidinyl group substituted with a hydroxyl group or with a hydroxyl group-containing lower alkyl group.}.

According to the research by the present inventors, the carbostyril derivative represented by the above general formula (1) or its salt is superior in platelets aggregation inhibitory activity, phosphodiesterase inhibitory activity, cardiocontraction increase activity (positive contraction activity), antiulcerative activity, antiinflammatory activity, brain and peripheral blood flow increasing activity, platelet plug dissecting activity, thromboxane A₂ antagonistic activity, etc. The compound of the present invention is characterized by having long sustaining times for the above-mentioned activities, low toxicity (the toxicity to heart when used for cardiac vascular hypertrophy, myocardial disturbance, etc. is particularly low), and very low circulatory effects for heart rate increase, blood pressure reduction, etc. The present compound also has an advantage that it is readily absorbed by intestinal tract and easily transferred into blood. Thus, the compound of the present invention can be most suitably used as a prophylactic and treating agent for thrombosis (e.g. cerebral apoplexia, cerebral infarction, myocardial infarction), a peripheral circulation improving agent, a cerebral circulation improving agent, an antiinflammatory agent, an antiasthmatic agent, a prophylactic and treating agent for diabetic complication (e.g. neurosis, nephritis), a cardiotonic agent and a phosphodiesterase agent.

The compound of the present invention further has a platelets adhesion inhibitory activity and therefore can be used, for example, as a prophylactic and treating agent for arteriosclerosis, ischemic heart disease, chronic arterial embolism, acute or chronic nephritis, etc.; for the postoperative administration of blood vessel in percutaneous transluminal coronary angioplasty (PTCA), etc.; as a prophylactic and treating agent for coronary arterial re-embolism due to indwelling of stent in blood vessel; and at the time of dialysis treatment or artificial organ embedding.

Each of the individual groups shown in the above general formula (1) is as follows.

As to the lower alkylene group, there can be mentioned, for example, straight chain or branched chain alkylene groups each of 1-6 carbon atoms, such as methylene, ethylene, methylmethylene, trimethylene, 2-methyltrimethylene, 2,2-dimethyltrimethylene, tetramethylene, pentamethylene, hexamethylene, 2-ethyltrimethylene, 1-methyltrimethylene and the like.

The lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group, can be exemplified by straight chain or branched chain alkyl groups each of 1-6 carbon atoms, which may each have 1-3 hydroxyl groups or 1-3 alkoxyalkoxy groups whose alkoxy portions are each a straight chain or branched chain alkoxy group of 1-6 carbon atoms, such as methyl, ethyl, propyl, isopropyl, butyl, tert-butyl, pentyl, hexyl, methoxymethoxymethyl, 2-methoxymethoxyethyl, 3-methoxymethoxypropyl, 2,3-dimethoxymethoxypropyl, 2-hydroxyethyl, 3-hydroxypropyl, 4-hydroxybutyl, 2-hydroxybutyl, 3-hydroxybutyl, 5-hydroxypentyl, 2-hydroxypentyl, 3-hydroxypentyl, 4-hydroxypentyl, 6-hydroxyhexyl, 2-hydroxyhexyl, 3-hydroxyhexyl, 4-hydroxyhexyl, 1-methyl-2-hydroxyethyl, 2-hydroxypropyl, 1,1-dimethyl-2-hydroxyethyl, 1,2-dihydroxyethyl, 2,2-dihydroxyethyl, 1,3-dihydroxypropyl, 2,3-dihydroxypropyl, 1,2,3-trihydroxypropyl, 1,4-dihydroxybutyl, 2,4-dihydroxybutyl, 3,4-dihydroxybutyl, 1,2-dihydroxybutyl, 2,3-dihydroxybutyl, 1,3-dihydroxybutyl, 2,2-dihydroxybutyl, 1,2,3-trihydroxybutyl, 2,3,4-trihydroxybutyl,2,3-dihydroxypentyl, 3,4-dihydroxypentyl, 3,5-dihydroxypentyl,2,3,4-trihydroxypentyl, 3,4,5-trihydroxypentyl, 2,4,5-trihydroxypentyl, 2,3-dihydroxyhexyl, 2,5-dihydroxyhexyl, 2,6-dihydroxyhexyl, 3,4-dihydroxyhexyl, 4,5-dihydroxyhexyl, 4,6-dihydroxyhexyl, 5,6-dihydroxyhexyl, 2,3,4-trihydroxyhexyl, 3,4,5-trihydroxyhexyl,4,5,6-trihydroxyhexyl and the like.

As to the lower alkanoyl group, there can be mentioned, for example, straight chain or branched chain alkanoyl groups each of 1-6 carbon atoms, such as formyl, acetyl, propionyl, butyryl, isobutyryl, pentanoyl, tert-butylcarbonyl, hexanoyl and the like.

As to the lower alkyl-substituted or unsubstituted amino group, there can be mentioned, for example, amino groups which may each have, as substituent(s), 1-2 straight chain or branched chain alkyl groups each of 1-6 carbon atoms, such as amino, methylamino, ethylamino, propylamino, isopropylamino, butylamino, tert-butylamino, pentylamino, hexylamino, dimethylamino, diethylamino, dipropylamino, dibutylamino, dipentylamino, dihexylamino, N-methyl-N-ethylamino, N-ethyl-N-propylamino, N-methyl-N-butylamino, N-methyl-N-hexylamino and the like.

As to the lower alkyl-substituted or unsubstituted aminocarbonyl group, there can be mentioned, for example, aminocarbonyl groups which may have, as substituent(s), 1-2 straight chain or branched chain alkyl groups each of 1-6 carbon atoms, such as aminocarbonyl, methylaminocarbonyl, ethylaminocarbonyl, propylaminocarbonyl, isopropylamino-carbonyl, butylaminocarbonyl, tert-butylaminocarbonyl, pentylaminocarbonyl, hexylaminocarbonyl, dimethylaminocarbonyl, diethylaminocarbonyl, dipropylaminocarbonyl, dibutylaminocarbonyl, dipentylaminocarbonyl, dihexylaminocarbonyl, N-methyl-N-ethylaminocarbonyl, N-ethyl-N-propylaminocarbonyl, N-methyl-N-butylaminocarbonyl, N-methyl-N-hexylaminocarbonyl and the like.

As to the lower alkylenedioxy group, there can be mentioned, for example, straight chain or branched chain alkylenedioxy groups each of 1-4 carbon atoms, such as methylenedioxy, ethylenedioxy, trimethylenedioxy, tetramethylenedioxy and the like.

As to the lower alkoxycarbonyl group-substituted lower alkyl group, there can be mentioned, for example, straight chain or branched chain alkoxycarbonylalkyl groups each of 1-6 carbon atoms, whose alkyl portions are each a straight chain or branched chain alkyl group of 1-6 carbon atoms, such as methoxycarbonylmethyl, 3-methoxycarbonylpropyl, 4-ethoxycarbonylbutyl, 6-propoxycarbonylhexyl, 5-isopropoxycarbonylpentyl, 1,1-dimethyl-2-butoxycarbonylethyl, 2-methyl-tert-butoxycarbonylpropyl, 2-pentyloxycarbonylethyl, hexyloxycarbonylmethyl and the like.

The carboxy-lower alkyl group can be exemplified by carboxyalkyl groups whose alkyl portions are each a straight chain or branched chain alkyl group of 1-6 carbon atoms, such as carboxymethyl, 2-carboxyethyl, 1-carboxyethyl, 3-carboxypropyl, 4-carboxybutyl, 1,1-dimethyl-2-carboxyethyl, 5-carboxypentyl, 6-carboxyhexyl, 2-methyl-3-carboxypropyl and the like.

As to the lower alkyl group having, as a substituent, a lower alkyl group-substituted or unsubstituted aminocarbonyl group, there can be mentioned straight chain or branched chain alkyl groups each of 1-6 carbon atoms, each having, a substituent, an aminocarbonyl group which may have 1-2 straight chain or branched chain alkyl groups each of 1-6 carbon atoms, such as aminocarbonylmethyl, 1-aminocarbonyl-ethyl, 2-aminocarbonylethyl, 3-aminocarbonylpropyl, 4-aminocarbonylbutyl, 5-aminocarbonylpentyl, 6-aminocarbonylhexyl, 1,1-dimethyl-2-aminocarbonylethyl, 2-methyl-3-aminocarbonylpropyl, methylaminocarbonylmethyl, ethylaminocarbonylmethyl, propylaminocarbonylmethyl, isopropylaminocarbonylmethyl, butylaminocarbonylmethyl, tert-butylaminocarbonylmethyl, pentylaminocarbonylmethyl, hexylaminocarbonylmethyl, dimethylaminocarbonylmethyl, diethylaminocarbonylmethyl, diethylaminocarbonylmethyl, dipropylaminocarbonylmethyl, dibutylaminocarbonylmethyl, dipentylaminocarbonylmethyl, dihexylaminocarbonylmethyl, N-methyl-N-ethylaminocarbonylmethyl, N-ethyl-N-propylaminocarbonylmethyl, N-methyl-N-butylaminocarbonylmethyl, N-methyl-N-hexylaminocarbonylmethyl, 2-methylaminocarbonylethyl, 1-ethylaminocarbonylethyl, 3-propylaminocarbonylpropyl, 4-butylaminocarbonylbutyl, 1,1-dimethyl-2-pentylaminocarbonylethyl, 5-hexylaminocarbonylpentyl, 6-dimethylaminocarbonylhexyl, 2-diethylaminocarbonylethyl, 1-(N-methyl-N-hexylamino)carbonylethyl, 3-dihexylaminocarbonylpropyl, 4-dibutylaminocarbonylbutyl, 2-(N-methyl-N-pentylamino)carbonylethyl and the like.

As to the hydroxyl group-containing lower alkyl group can be exemplified by straight chain or branched chain alkyl groups each of 1-6 carbonyl atoms, each having 1-3 hydroxyl groups, such as 2-hydroxyethyl, 3-hydroxypropyl, 4-hydroxybutyl, 2-hydroxybutyl, 3-hydroxybutyl, 5-hydroxypentyl, 2-hydroxypentyl, 3-hydroxypentyl, 4-hydroxypentyl, 6-hydroxyhexyl, 2-hydroxyhexyl, 3-hydroxyhexyl, 4-hydroxyhexyl, 1-methyl-2-hydroxyethyl, 2-hydroxypropyl, 1,1-dimethyl-2-hydroxyethyl, 1,2-dihydroxyethyl, 2,2-dihydroxyethyl, 1,3-dihydroxypropyl, 2,3-dihydroxypropyl, 1,2,3-trihydroxypropyl, 1,4-dihydroxybutyl, 2,4-dihydroxy butyl, 3,4-dihydroxybutyl, 1,2-dihydroxybutyl, 2,3-dihydroxybutyl, 1,3-dihydroxybutyl, 2,2-dihydroxybutyl, 1,2,3-trihydroxybutyl, 2,3,4-trihydroxybutyl, 2,3-dihydroxypentyl, 3,4-dihydroxypentyl, 3,5-dihydroxypentyl, 2,3,4-trihydroxypentyl, 3,4,5-trihydroxypentyl, 2,4,5-trihydroxypentyl, 2,3-dihydroxyhexyl, 2,5-dihydroxyhexyl, 2,6-dihydroxyhexyl, 3,4-dihydroxyhexyl, 4,5-dihydroxyhexyl, 4,6-dihydroxyhexyl, 5,6-dihydroxyhexyl, 2,3,4-trihydroxyhexyl, 3,4,5-trihydroxyhexyl, 4,5,6-trihydroxyhexyl and the like.

As to the imidazolyl-substituted lower alkyl group, there can be mentioned, for example, imidazolylalkyl groups whose alkyl portions are each a straight chain or branched chain alkyl group of 1-6 carbon atoms, such as (2-imidazolyl)-methyl, 2-(1-imidazolyl)ethyl, 1-(4-imidazolyl)ethyl, 3-(5-imidazolyl)propyl, 4-(2-imidazolyl)-butyl, 1,1-dimethyl-2-(4-imidazolyl)ethyl, 5-(1-imidazolyl)pentyl, 6-(5-imidazolyl)hexyl, 2-methyl-3-(1-imidazolyl)propyl and the like.

The pyridyl-substituted lower alkyl group can be exemplified by pyridyl-substituted alkyl groups whose alkyl portions are each a straight chain or branched chain alkyl group of 1-6 carbon atoms, such as (2-pyridyl)methyl, 2-(3-pyridyl)ethyl, 1-(4-pyridyl)ethyl, 3-(4-pyridyl)propyl, 4-(2-pyridyl)butyl, 1,1-dimethyl-2-(3-pyridyl)ethyl, 5-(4-pyridyl)pentyl, 6-(2-pyridyl)hexyl, 2-methyl-3-(3-pyridyl)propyl and the like.

The pyrrolidinyl-lower alkyl group which may have, as substituent(s) on the pyrrolidine ring, 1-3 groups selected from the group consisting of a lower alkyl group, a lower alkoxy-lower alkoxy group and a hydroxyl group, can be exemplified by pyrrolidinylalkyl groups whose alkyl groups are each a straight chain or branched chain alkyl group of 1-6 carbon atoms and which may have, as substituent(s) on the pyrrolidine ring, 1-3 groups selected from the group consisting of a straight chain or branched chain alkyl group of 1-6 carbon atoms and a hydroxyl group, such as (2-pyrrolidinyl)methyl, 2-(3-pyrrolidinyl)ethyl, 1-(2-pyrrolidinyl)ethyl, 3-(2-pyrrolidinyl)propyl, 4-(3-pyrrolidinyl)butyl, 5-(3-pyrrolidinyl)pentyl, 6-(2-pyrrolidinyl)hexyl, (3-methoxymethoxy-1-ethoxy-2-pyrrolidinyl)methyl, (1,3-dimethyl-4-ethoxymethoxy-2-pyrrolidinyl)methyl, 2-(3-propoxymethoxy-1-pyrrolidinyl)ethyl, 1,1-dimethyl-2-(2-pyrrolidinyl)ethyl, 2-methyl-3-(3-pyrrolidinyl)propyl, (1-ethyl-4-hydroxy-2-pyrrolidinyl)methyl, 2-(1-methyl-3-pyrrolidinyl)ethyl, 1-(1-propyl-2-pyrrolidinyl)-ethyl, 3-(1-butyl- 4-hydroxy-2-pyrrolidinyl)propyl, 4-(1-pentyl-3,4-dihydroxy-3-pyrrolidinyl)butyl, 5-(1-hexyl-3-pyrrolidinyl)pentyl, 6-(1-methyl-2-pyrrolidinyl)hexyl, (1,3-dimethyl-4-hydroxy-2-pyrrolidinyl)methyl, 2-(3-hydroxy-2-pyrrolidinyl)ethyl, (4-hydroxy-2-pyrrolidinyl)methyl, 3-(5-hydroxy-2-pyrrolidinyl)propyl and the like.

As to the lower alkoxycarbonyl group, there can be mentioned, for example, alkoxycarbonyl groups whose alkoxy portions are each a straight chain or branched chain alkoxy group of 1-6 carbon atoms, such as methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, isopropoxycarbonyl, butoxycarbonyl, pentyloxycarbonyl, hexyloxycarbonyl and the like.

As to the cycloalkyl-lower alkyl group, there can be mentioned, for example, cycloalkylalkyl groups each of 3-8 carbon atoms, whose alkyl portions are each a straight chain or branched chain alkyl group of 1-6 carbon atoms, such as cyclopropylmethyl, cyclobutylmethyl, cyclopentylmethyl, cyclohexylmethyl, cycloheptylmethyl, cyclooctylmethyl, 2-cyclopropylethyl, 1-cyclobutylethyl, 3-cyclopentylpropyl, 4-cyclohexylbutyl, 5-cycloheptylpentyl, 6-cyclooctylhexyl, 2-methyl-3-cyclohexylpropyl, 2-cyclohexylethyl, 1-cyclohexylethyl and the like.

As to the cycloalkyl group, there can be mentioned, for example, cycloalkyl groups each of 3-8 carbon atoms, such as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclononanyl, cyclodecanyl and the like.

The lower alkoxy group can be exemplified by straight chain or branched chain alkoxy groups each of 1-6 carbon atoms, Such as methoxy, ethoxy, propoxy, isopropoxy, butoxy, tert-butoxy, pentyloxy, hexyloxy and the like.

As to the lower alkyl group, there can be mentioned, for example, straight chain or branched chain alkyl groups each of 1-6 carbon atoms, such as methyl, ethyl, propyl, isopropyl, butyl, tert-butyl, pentyl, hexyl and the like.

The phenyl-lower alkyl group which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group, a cyano group, a carboxy group and a lower alkoxy group, can be exemplified by phenylalkyl groups whose alkyl portions are each a straight chain or branched chain alkyl group of 1-6 carbon atoms and which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a straight chain or branched chain alkyl group of 1-6 carbon atoms, a carboxy group, a cyano group and a straight chain or branched chain alkoxy group of 1-6 carbon atoms, such as benzyl, 2-phenylethyl, 1-phenylethyl, 3-phenylpropyl, 4-phenylbutyl, 1,1-dimethyl-2-phenylethyl, 5-phenylpentyl, 6-phenylhexyl, 2-methyl-3-phenylpropyl, 2-chlorobenzyl, 2-(3-chlorophenyl)ethyl, 1-(4-chlorophenyl)ethyl, 3-(2-fluorophenyl)propyl, 4-(3-fluorophenyl)butyl, 1,1-dimethyl-2-(4-fluorophenyl)ethyl, 5-(2-bromophenyl)pentyl, 6-(3-bromophenyl)hexyl, 2-methyl-3-(4-bromophenyl)propyl, 4-fluorobenzyl, 3-iodobenzyl, 2-(4-iodophenyl)ethyl, 1-(3,5-dichlorophenyl)ethyl, 3,4-dichlorobenzyl, 2-(3,4-dichlorophenyl)ethyl, 3-(2,6-dichlorophenyl)propyl, 4-(3,4-dichlorophenyl)butyl, 1,1-dimethyl-2-(3,4-difluorophenyl)ethyl, 5-(3,5-dibromophenyl)-pentyl, 6-(3,4,5-trichlorophenyl)hexyl, 4-methylbenzyl, 2-(2-methylphenyl)ethyl, 1-(3-methylphenyl)-ethyl, 3-(3-ethylphenyl)propyl, 4-(2-ethylphenyl)butyl, 5-(4-ethylphenyl)pentyl, 6-(3-isopropylphenyl)hexyl, 2-methyl-3-(4-hexylphenyl)propyl, 2-(3,4-dimethylphenyl)ethyl, 2-(2,5-dimethylphenyl)ethyl, 2-(3,4,5-trimethylphenyl)ethyl, 4-methoxybenzyl, 3,4-dimethoxybenzyl, 3,4,5-trimethoxybenzyl, 1-(3-methoxyphenyl)ethyl, 2-(2-methoxyphenyl)ethyl, 3-(2-ethoxyphenyl)propyl, 4-(4-ethoxyphenyl)butyl, 5-(3-ethoxyphenyl)pentyl, 6-(4-isopropoxyphenyl) hexyl, 1,1-dimethyl-2-(4-hexyloxyphenyl)ethyl, 2-methyl-3-(3,4-dimethoxyphenyl)propyl, 2-(3,4-dimethoxyphenyl)ethyl, 2-(3,4-diethoxyphenyl)ethyl, 2-(3,4,5-trimethoxyphenyl)ethyl, 1-(2,5-dimethoxyphenyl)ethyl, (2 -chloro-4-methoxy)benzyl, 4-cyanobenzyl, 1-(3-cyanophenyl)ethyl, 1-(2-cyanophenyl)propyl, 1-(2,3-dicyanophenyl)butyl, 1-(2,3,4-tricyanophenyl)pentyl, 1-(2,4-dicyanophenyl)hexyl, 4-carboxybenzyl, 1-(3-carboxyphenyl)ethyl, 1-(2-carboxyphenyl)propyl, 1-(2,4-dicarboxyphenyl)butyl, 1-(2,4,6-tricarboxyphenyl)pentyl, 1-(2-chloro-4-carboxyphenyl)hexyl, (3-methyl-4-cyano)benzyl and the like.

As to the thienyl-substituted lower alkyl group, there can be mentioned, for example, thienyl-substituted alkyl groups whose alkyl portions are each a straight chain or branched chain alkyl group of 1-6 carbon atoms, such as (2-thienyl)methyl, 2-(3-thienyl)ethyl, 1-(2-thienyl)ethyl, 3-(2-thienyl)propyl, 4-(3-thienyl)butyl, 1,1-dimethyl-2-(2-thienyl)ethyl, 5-(3-thienyl)pentyl, 6-(2-thienyl)hexyl, 2-methyl-3-(3-thienyl)propyl and the like.

The cycloalkylcarbonyl group can be exemplified by cycloalkylcarbonyl groups each of 3-10 carbon atoms, such as cyclopropylcarbonyl, cyclobutylcarbonyl, cyclopentylcarbonyl, cyclohexylcarbonyl, cycloheptylcarbonyl, cyclooctylcarbonyl, cyclononanylcarbonyl, cyclodecanylcarbonyl and the like.

As to the tetrahydropyranyl-substituted lower alkyl group, there can be mentioned tetrahydropyranyl-substituted alkyl groups whose alkyl portions are each a straight chain or branched chain alkyl group of 1-6 carbon atoms, such as (2-tetrahydropyranyl)methyl, (3-tetrahydropyranyl)methyl, (4-tetrahydropyranyl)methyl, 2-(2-tetrahydropyranyl)ethyl, 2-(3-tetrahydropyranyl)ethyl, 2-(4-tetrahydropyranyl)ethyl, 1-(2-tetrahydropyranyl)ethyl, 1-(3-tetrahydropyranyl)ethyl, 1-(4-tetrahydropyranyl)ethyl, 3-2-(tetrahydropyranyl)propyl, 3-(3-tetrahydropyranyl)propyl, 3-(4-tetrahydropyranyl)propyl, 4-(2-tetrahydropyranyl)butyl, 4-(3-tetrahydropyranyl)butyl, 4-(4-tetrahydropyranyl)butyl, 1,1-dimethyl-2-(2-tetrahydropyranyl)ethyl, 1,1-dimethyl-2-(3-tetrahydropyranyl)ethyl, 1,1-dimethyl-2-(4-tetrahydropyranyl)ethyl, 5-(2-tetrahydropyranyl)pentyl, 5-(3-tetrahydropyranyl)pentyl, 5-(4-tetrahydropyranyl)pentyl, 6-(2-tetrahydropyranyl)hexyl, 6-(3-tetrahydropyranyl)hexyl, 6-(4-tetrahydropyranyl)hexyl, 2-methyl-3-(2-tetrahydropyranyl)propyl, 2-methyl-3-(3-tetrahydropyranyl)propyl, 2-methyl-3-(4-tetrahydropyranyl)propyl and the like.

The phenyl-lower alkylsulfonyl group can be exemplified by phenylalkylsulfonyl groups whose alkyl portions are each a straight chain or branched chain alkyl group of 1-6 carbon atoms, such as benzylsulfonyl, 2-phenylethylsulfonyl, 1-phenylethylsulfonyl, 3-phenylpropylsulfonyl, 4-phenylbuytl-sulfonyl, 1,1-dimethyl-2-phenylethylsulfonyl, 5-phenylpentylsulfonyl, 6-phenylhexylsulfonyl, 2-methyl-3-phenylpropylsulfonyl and the like.

As to the cycloalkyl-lower alkylsulfonyl group, there can be mentioned, for example, cycloalkylalkylsulfonyl groups each of 3-8 carbon atoms, whose alkyl portions are each a straight chain or branched chain alkyl group of 1-6 carbon atom, such as cyclopropylmethylsulfonyl, cyclobutylmethylsulfonyl, cyclopentylmethylsulfonyl, cyclohexylmethylsulfonyl, cycloheptylmethylsulfonyl, cyclooctylmethylsulfonyl, 2-cyclopropylethylsulfonyl, 1-cyclobutylethylsulfonyl, 3-cyclopentylpropylsulfonyl, 4-cyclohexylbutylsulfonyl, 5-cycloheptylpentylsulfonyl, 6-cyclooctylhexylsulfonyl, 2-methyl-3-cyclohexylpropylsulfonyl, 2-cyclohexylethylsulfonyl, 1-cyclohexylethylsulfonyl and the like.

The cycloalkyl-lower alkyl group-substituted or unsubstituted aminocarbonyl group can be exemplified by aminocarbonyl groups which may have, as substituent(s), 1-2 cycloalkylalkyl groups each of 3-8 carbon atoms whose alkyl portions are each a straight chain or branched chain alkyl group of 1-6 carbon atoms, such as aminocarbonyl, cyclohexylmethylaminocarbonyl, cyclopropylmethylaminocarbonyl, cyclobutylmethylaminocarbonyl, cyclopentylmethylaminocarbonyl, cycloheptylmethylaminocarbonyl, cyclooctylmethylaminocarbonyl, (2-cyclopropylethyl)aminocarbonyl, (1-cyclobutylethyl)aminocarbonyl, (3-cyclopentylpropyl)aminocarbonyl, (4-cyclohexylbutyl)aminocarbonyl, (5-cycloheptylpenty)aminocarbonyl, (6-cyclooctylhexyl)aminocarbonyl, (2-methyl-3-cyclohexylpropyl)aminocarbonyl, (2-cyclohexylethyl)aminocarbonyl, (1-cyclohexylethyl)aminocarbonyl, dicyclohexylmethylaminocarbonyl, N-cyclohexylmethyl-N-cycloheptylmethylaminocarbonyl and the like.

The lower alkylene group which may have a hydroxyl group, can be exemplified by the above-mentioned lower alkylene groups and further by straight chain or branched chain alkylene groups each of 1-6 carbon atoms which may have hydroxyl group(s), such as 2-hydroxytrimethylene, 2-hydroxytetramethylene, 2,3-dihydroxytetramethylene, 3-hydroxypentamethylene, 3-hydroxytetramethylene, 5-hydroxyhexamethylene and the like.

The phenyl-lower alkyl group which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group and a lower alkoxy group, can be exemplified by phenylalkyl groups whose alkyl portions are each a straight chain or branched chain alkyl group of 1-6 carbon atoms and which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a straight chain or branched chain alkyl group of 1-6 carbon atoms and a straight chain or branched chain alkoxy group of 1-6 carbon atoms, such as benzyl, 2-phenylethyl, 1-phenylethyl, 3-phenylpropyl, 4-phenylbutyl, 1,1-dimethyl-2-phenylethyl, 5-phenylpentyl, 6-phenylhexyl, 2-methyl-3-phenylpropyl, 2-chlorobenzyl, 2-(3-chlorophenyl)ethyl, 1-(4-chlorophenyl)ethyl, 3-(2-fluorophenyl)propyl, 4-(3-fluorophenyl)butyl, 1,1-dimethyl-2-(4-fluorophenyl)ethyl, 5-(2-bromophenyl)pentyl, 6-(3-bromophenyl)hexyl, 2-methyl-3-(4-bromophenyl)propyl, 4-fluorobenzyl, 3-iodobenzyl, 2-(4-iodophenyl)ethyl, 1-(3,5-dichlorophenyl)ethyl, 3,4-dichlorobenzyl, 2-(3,4-dichlorophenyl)ethyl, 3-(2,6dichlorophenyl)propyl, 4-(3,4-dichlorophenyl)butyl, 1,1-dimethyl-2-(3,4-difluorophenyl)ethyl, 5-(3,5-dibromophenyl)pentyl, 6-(3,4,5-trichlorophenyl)hexyl, 4-methylbenzyl, 2-(2-methylphenyl)ethyl, 1-(3-methylphenyl)ethyl, 3-(3-ethylphenyl)propyl, 4-(2-ethylphenyl)butyl, 5-(4-ethylphenyl)pentyl, 6-(3-isopropylphenyl)hexyl, 2-methyl-3-(4-hexylphenyl)propyl, 2-(3,4-dimethylphenyl)ethyl, 2-(2,5-dimethylphenyl)ethyl, 2-(3,4,5-trimethylphenyl)ethyl, 4-methoxybenzyl, 3,4-dimethoxybenzyl, 3,4,5-trimethoxybenzyl, 1-(3-methoxyphenyl)ethyl, 2-(2-methoxyphenyl)ethyl, 3-(2-ethoxyphenyl)propyl, 4-(4-ethoxyphenyl)butyl, 5-(3-ethoxyphenyl)pentyl, 6-(4-isopropoxyphenyl)hexyl, 1,1-dimethyl-2-(4-hexyloxyphenyl)ethyl, 2-methyl-3-(3,4-dimethoxyphenyl)propyl, 2-(3,4-dimethoxyphenyl)ethyl, 2-(3,4-diethoxyphenyl)ethyl, 2-(3,4,5-trimethoxyphenyl) ethyl, 1-(2,5-dimethoxyphenyl)ethyl, (2-chloro-4-methoxy)benzyl and the like.

As to the piperidinyl-lower alkyl group which may have, as a substituent on the piperidinyl ring, a lower alkoxy-lower alkoxy group or a hydroxyl group, there can be mentioned, for example, piperidinylalkyl groups whose alkyl portions are each a straight chain or branched chain alkyl group of 1-6 carbon atoms and which may have, as substituent(s) on the piperidinyl ring, 1-3 hydroxyl groups or 1-3 alkoxyalkoxy groups whose alkoxy portions are each a straight chain or branched chain alkoxy group of 1-6 carbon atoms, such as (4-hydroxyl-1-piperidinyl)methyl, 2-(4-hydroxy-1-piperidinyl)ethyl, 1-(4-hydroxy-1-piperidinyl)ethyl, 3-(4-hydroxy-1-piperidinyl)propyl, 4-(4-hydroxy-1-piperidinyl)butyl, 5-(4-hydroxy-1-piperidinyl)pentyl, 6-(4-hydroxy-1-piperidinyl)-hexyl, 1,1-dimethyl-2-(3-hydroxy-1-piperidinyl)ethyl, 2-methyl-3-(2-hydroxy-1-piperidinyl)propyl, 2-(2,4-dihydroxy-1-piperidinyl)ethyl, 3-(2-hydroxy-4-piperidinyl)propyl, (2,4,6-trihydroxy-1-piperidinyl)methyl, 1-(2-hydroxy-3-piperidinyl)ethyl, 4-(3-hydroxy-2-piperidinyl)-butyl, 5-(3-hydroxy-4-piperidinyl)pentyl, 6-(2-hydroxy-3-piperidinyl)hexyl, 2-(4-methoxymethoxy-1-piperidinyl)ethyl, 3-(4-ethoxymethoxy-1-piperidinyl) propyl, 2-(2,4-dimethoxymethoxy-1-piperidinyl)ethyl and the like.

The five- or six-membered saturated heterocyclic ring group formed by R⁷ and R⁸ or by R¹⁰ and R¹¹ together with the nitrogen atom to which R⁷ and R⁸ or R¹⁰ and R¹¹ bond and further with or without a nitrogen, sulfur or oxygen atom which may be present between R⁷ and R⁸ or R¹⁰ and R¹¹, can be exemplified by pyrrolidinyl, piperidinyl, piperazinyl, morpholinyl, thiomorpholinyl, isothiazolidinyl, 3,4,5,6-tetrahydro-1,2-thiazinyl.

The above heterocyclic ring group having 1-3 substituents selected from the group consisting of a hydroxyl group, a lower alkoxy-lower alkoxy group, a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group, a lower alkyl-substituted or unsubstituted amino group, an oxo group and a lower alkyl-substituted or unsubstituted aminocarbonyl group, or having a lower alkylenedioxy group as a substituent, can be exemplified by the above heterocyclic ring groups each having 1-3 substituents selected from the group consisting of a hydroxyl group, an alkoxyalkoxy group whose alkoxy portion is a straight chain or branched chain alkoxy group of 1-6 carbon atoms, a straight chain or branched chain alkyl group of 1-6 carbon atoms which may have, as substituent(s), 1-3 hydroxyl groups or 1-3 alkoxyalkoxy groups whose alkoxy portions are each a straight chain or branched chain alkoxy group of 1-6 carbon atoms, an amino group which may have, as substituent(s), 1-2 straight chain or branched chain alkyl groups each of 1-6 carbon atoms, an oxo group, and an aminocarbonyl group which may have, as substituent(s), 1-2 straight chain or branched chain alkyl groups each of 1-6 carbon atoms, or each having, as a substituent, a straight chain or branched chain alkylenedioxy group of 1-4 carbon atoms, such as 4-hydroxy-1-piperidinyl, 2,6-dimethyl-1-piperidinyl, 4-methylamino-1 -piperidinyl, 4,4-ethylenedioxy-1-piperidinyl, 3,4-dihydroxy-1-pyrrolidinyl, 2-methoxymethoxy-methyl-1-pyrrolidinyl, 2-methoxymethoxymethyl-4-hydroxy-1-pyrrolidinyl, 5-methoxymethoxymethyl-2-oxo-1-pyrrolidinyl, 4-(2-methoxymethoxyethyl)-1-piperazinyl, 2-hydroxymethyl-1-pyrrolidinyl, 2-dimethylaminocarbonyl-1-pyrrolidinyl, 2-hydroxymethyl-4-hydroxy-1-pyrrolidinyl, 1,1-dioxo-3,4,5,6-tetrahydro-1,2-thiazin-2-yl, 4-(2-hydroxyethyl)-1-piperazinyl, 4-dimethylamino-1-piperidinyl, 1,1- dioxo-2-isothiazolidinyl, 3-hydroxy-1-pyrrolidinyl, 2-dimethylamino-1-pyrrolidinyl, 4-methoxymethoxy-1-piperidinyl, 4-(2-ethoxyethoxy)-1-piperidinyl, 3-propoxypropoxy-1-pyrrolidinyl, 3-(4-butoxybutoxy)thiomorpholino, 2-(5-pentyloxypentyloxy)morpholino, 3-(6-hexyloxyhexyloxy)-3,4,5,6-tetrahydro-1,2-thiazin-2-yl, 2-oxo-5-hydroxymethyl-1-pyrrolidinyl, 4-methyl-1-piperazinyl, 2,4,6-trimethyl-1-piperidinyl, 3-ethyl-1-pyrrolidinyl, 3-propyl-1-piperazinyl, 3-methylmorpholino, 5-butyl-2-thiomorpholino, 2-amino-1-pyrrolidinyl, 4-(N-methyl-N-propylamino)-1-piperidinyl, 3-dibutylamino-1-piperazinyl, 3-(N-ethyl-N-pentylamino)morpholino, 2-dihexylaminothiomorpholino, 3-dimethyl-aminocarbonyl-1-pyrrolidinyl, 3-methylaminocarbonyl-1-piperidinyl, 2-ethylaminocarbonylmorpholino, 3-propylaminocarbonyl-1-piperazinyl, 3-butylaminocarbonyl-2-thiomorpholino, 3-pentylaminocarbonyl-3,4,5,6-tetrahydro-1,2-thiazin-2-yl, 3-hexylaminocarbonyl-2-isothiazolidinyl, 3-dibutylaminocarbonyl-1-piperazinyl, 4-(N-methyl-N-ethylaminocarbonyl)-1-piperidinyl, 4-hydroxy-2,6-dimethyl-1-piperidinyl, 2-oxo-1-piperazinyl, 3-oxo-1-piperazinyl, 4,4-methylenedioxy-1-piperazinyl and the like.

The above heterocyclic ring group having 1-3 substituents selected from the group consisting of a hydroxyl group, a lower alkoxy-lower alkoxy group, an oxo group, a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group, and a lower alkyl group-substituted or unsubstituted amino group, or having a lower alkylenedioxy group as a substituent, can be exemplified by the above heterocyclic ring groups each having 1-3 substituents selected from the group consisting of a hydroxyl group, an alkoxyalkoxy group whose alkoxy portion is a straight chain or branched chain alkoxy group of 1-6 carbon atoms, a straight chain or branched chain alkyl group of 1-6 carbon atoms which may have, as substituent(s), 1-3 hydroxyl groups or 1-3 alkoxyalkoxy groups whose alkoxy portions are each a straight chain or branched chain alkoxy group of 1-6 carbon atoms, an amino group which may have 1-2 straight chain or branched chain alkyl groups each of 1-6 carbon atoms, and an oxo group, or each having a straight chain or branched chain alkylenedioxy group of 1-4 carbon atoms as a substituent, such as 4-hydroxy-1-piperidinyl, 2,6-dimethyl-1-piperidinyl, 4-methylamino-1-piperidinyl, 4,4-ethylenedioxy-1-piperidinyl, 3,4-dihydroxy-1-pyrrolidinyl, 2-methoxymethoxymethyl-1-pyrrolidinyl, 2-methoxymethoxymethyl-4-hydroxy-1-pyrrolidinyl, 5-methoxymethoxymethyl- 2-oxo-1-pyrrolidinyl, 4-(2-methoxymethoxyethyl)-1-piperazinyl, 2-hydroxymethyl-1-pyrrolidinyl, 2-hydroxymethyl-4-hydroxy-1-pyrrolidinyl, 1,1- dioxo-3,4,5,6-tetrahydro-1,2-thiazin-2-yl, 4-(2-hydroxyethyl)-1-piperazinyl, 4-dimethylamino-1-piperidinyl, 1,1- dioxo-2-isothiazolydinyl, 3-hydroxy-1-pyrrolidinyl, 2-dimethylamino-1-pyrrolidinyl, 4-methoxymethoxy-1-piperidinyl, 4-(2-ethoxyethoxy)-1-piperidinyl, 3-propoxypropoxy-1-pyrrolidinyl, 3-(4-butoxybutoxy)thiomorpholino, 2-(5-pentyloxypentyloxy)morpholino, 3-(6-hexyloxyhexyloxy)-3,4,5,6-tetrahydro-1,2-thiazin-2-yl, 2-oxo-5-hydroxymethyl-1-pyrrolidinyl, 4-methyl-1-piperazinyl, 2,4,6-trimethyl-1-piperidinyl, 3-ethyl-1-pyrrolidinyl, 3-propyl-1-piperazinyl, 3-methylmorpholino, 5-butyl-2-thiomorpholino, 2-amino-1-pyrrolidinyl, 4-(N-methyl-N-propylamino)-1-piperidinyl, 3-dibutylamino-1-piperazinyl, 3-(N-ethyl-N-pentylamino)morpholino, 2-dihexylaminothiomorpholino, 3-dimethylaminocarbonyl-1-pyrrolidinyl, 3-methylaminocarbonyl-1-piperidinyl, 2-ethylaminocarbonylmorpholino, 4-hydroxy-2,6-dimethyl-1-piperidinyl, 2-oxo-1-piperazinyl, 3-oxo-1-piperazinyl, 4,4-methylenedioxy-1-piperazinyl and the like.

The five- or six-membered saturated or unsaturated heterocyclic ring residue containing 1-3 nitrogen atoms, can be exemplified by pyrrolyl, 2H-pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyridazyl, pyrimidyl, pyrazyl, 2-pyrrolinyl, pyrrolidinyl, 2-imidazolyl, imidazolidinyl, 2-pyrazolinyl, pyrazolidinyl, piperidinyl, piperazinyl, 1,2,4-triazolyl and 1,3,4-triazolyl.

The above heterocyclic ring residue having, as substituent(s), a hydroxyl group, a lower alkoxyalkoxy group, a lower alkoxycarbonyl group or a lower alkyl group which may be substituted with a lower alkoxy-lower alkoxy group or a hydroxyl group, can be exemplified by the above heterocyclic ring residues each having, as substituent(s), a hydroxyl group, an alkoxyalkoxy group whose alkoxy portion is a straight chain or branched chain alkoxy group of 1-6 carbon atoms, a straight chain or branched chain alkoxycarbonyl group of 1-6 carbon atoms, or a straight chain or branched chain alkyl group of 1-6 carbon atoms which may have, as substituent(s), 1-3 hydroxyl groups or 1-3 alkoxyalkoxy groups whose alkoxy portions are each a straight chain or branched chain alkoxy group of 1-6 carbon atoms, such as 4-hydroxy-1-piperidinyl, 3-hydroxy-1-piperidinyl, 2-hydroxy-1-piperidinyl, 2-methoxycarbonyl-1-pyrrolidinyl, s2-methoxymethoxymethyl-1-pyrrolidinyl, 2-(2-methoxymethoxyethyl)-1-imidazolyl, 3-methoxymethoxymethyl-pyrazolyl, 4-(3-ethoxymethoxypropyl)-2-pyrimidyl, 4-methoxymethoxymethyl-2-imidazolin-2-yl, 4-ethoxymethoxymethyl-1-pyrazolidinyl, 2-hydroxymethyl-1-pyrrolidinyl, 2-(2-hydroxyethyl)-1-imidazolyl, 3-ethoxycarbonyl-1,2,4-triazol-1-yl, 3-hydroxy-1-pyrrolyl, 3-ethoxycarbonyl-2H-pyrrolyl, 3-hydroxymethyl-pyrazolyl, 4-hydroxy-2-pyridyl, 4-ethoxycarbonyl-3-pyridazyl, 4-(3-hydroxypropyl)-2-pyrimidyl, 2-propoxycarbonyl-3-pyrazyl, 2-hydroxy-2-pyrrolinin-1-yl, 4-hydroxymethyl- 2-imidazolin-2-yl, 2-methoxycarbonyl-1-imidazolidinyl, 3-methoxymethoxy-1-pyrrolidinyl, 4-(2-ethoxyethoxy)-1-piperidinyl, 4-methoxymethoxy-1-piperidinyl, 3-hydroxy-2-pyrazolin-1-yl, 4-hydroxymethyl-1-pyrazolidinyl, 4-ethoxycarbonyl-1-piperazinyl and the like.

The pyrrolidinyl group having 1-2 substituents selected from the group consisting of a hydroxyl group, a lower alkoxy-lower alkoxy group, a lower alkyl group which may have, as substituent(s), a lower alkoxy-lower alkoxy group or a hydroxyl group, a lower alkoxycarbonyl group, a piperidinylcarbnyl group and a cycloalkyl-lower alkyl group-substituted or unsubstituted aminocarbonyl group, can be exemplified by pyrrolidinyl groups each having 1-2 substituents selected from the group consisting of a hydroxyl group, an alkoxyalkoxy group whose alkoxy portion is a straight chain or branched chain alkoxy group of 1-6 carbon atoms, a straight chain or branched chain alkyl group of 1-6 carbon atoms which may have 1-3 hydroxyl groups or 1-3 alkoxyalkoxy groups whose alkoxy portions are each a straight chain or branched chain alkoxy group of 1-6 carbon atoms, a straight chain or branched chain alkoxycarbonyl group of 1-6 carbon atoms, a piperidinylcarbonyl group and an aminocarbonyl group which may have 1-2 cycloalkylalkyl group of 3-8 carbon atoms whose alkyl portion is a straight chain or branched chain alkyl group of 1-6 carbon atoms, such as 2-methoxymethoxymethyl-1-pyrrolidinyl, 2 -methoxymethoxymethyl-4-methoxymethoxy-1-pyrrolidinyl, 3,4-dihydroxy-1-pyrrolidinyl, 3,4-dimethoxymethoxy-1-pyrrolidinyl, 2-hydroxymethyl-1-pyrrolidinyl, 2-methoxycarbonyl-1-pyrrolidinyl, 2-(1-piperidinylcarbonyl)-1-pyrrolidinyl, 2-cyclohexylmethylaminocarbonyl-1-pyrrolidinyl, 4-hydroxy-1-pyrrolidinyl, 2-hydroxymethyl-4-hydroxy-1-pyrrolidinyl, 2-methoxycarbonyl-4-hydroxy-1-pyrrolidinyl, 2-(1-piperidinylcarbonyl)-4-hydroxy-1-pyrrolidinyl, 2-cyclohexylmethylaminocarbonyl-4-hydroxy-1-pyrrolidinyl, 3-ethoxycarbonyl-1-pyrrolidinyl, 2-propoxycarbonyl-1-pyrrolidinyl, 3-butoxycarbonyl-1-pyrrolidinyl, 2-pentyloxycarbonyl-1-pyrrolidinyl, 3-hexyloxycarbonyl-1-pyrrolidinyl, 2-hydroxy-1-pyrrolidinyl, 3-hydroxy-1-pyrrolidinyl, 2-cycloheptylmethylaminocarbonyl-1-pyrrolidinyl, 3-cyclooctylmethylaminocarbonyl-1-pyrrolidinyl, 2-cyclopentylmethylaminocarbonyl-1-pyrrolidinyl, 3-cyclopropylmethylaminocarbonyl-1-pyrrolidinyl, 2-cyclobutylmethylaminocarbonyl-1-pyrrolidinyl, 2-(1-piperidinylcarbonyl)-4-methoxycarbonyl-1-pyrrolidinyl, 2-cyclohexylaminocarbonyl-4-methyl-1-pyrrolidinyl, 2-ethyl-4-hydroxy-1-pyrrolidinyl, 4-propyl-1-pyrrolidinyl, 2-hydroxymethyl-4-methoxymethoxy-1-pyrrolidinyl, 2-methoxycarbonyl-4-(2-ethoxyethoxy)-1-pyrrolidinyl, 2-(1-piperidinylcarbonyl)-4-propoxymethoxy-1-pyrrolidinyl, 2-cyclohexylmethylaminocarbonyl-4-butoxymethoxy-1-pyrrolidinyl and the like.

As to the lower alkoxy-lower alkoxy group, there can be mentioned, for example, alkoxyalkoxy groups whose alkoxy portions are each a straight chain or branched chain alkoxy group of 1-6 carbon atoms, such as methoxymethoxy, 3-methoxypropoxy, 4-ethoxybutoxy, 4-propoxyhexyloxy, 5-isopropoxypentyloxy, 1,1-dimethyl-2-butoxyethoxy, 2-methyl-tert-butoxypropoxy, 2-pentyloxyethoxy, hexyloxymethoxy and the like.

As to the halogen atom, there can be mentioned, for example, a fluorine atom, a chlorine atom, a bromine atom and an iodine atom.

The carbostyril derivative represented by the above general formula (1) can be produced by various processes. It can be easily produced by, for example, the processes shown by the following reaction formulas. ##STR20## [wherein A, W and the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton have the same definitions as given above. R^(a) represents a group ##STR21## (wherein R¹ and R² have the same definitions as given above.). X represents a halogen atom, a lower alkanesulfonyloxy group, an arylsulfonyloxy group or an aralkylsulfonyloxy group.]

The reaction between a compound of general formula (2) and a compound of general formula (3) is conducted in an appropriate solvent or in the absence of any solvent, in the presence or absence of a basic compound. The reaction is conducted generally at room temperature to 200° C., preferably at room temperature to 150° C., and is complete generally in about 1-30 hours. The solvent used can be exemplified by ethers such as dioxane, tetrahydrofuran, ethylene glycol dimethyl ether, diethyl ether and the like; aromatic hydrocarbons such as benzene, toluene, xylene and the like; halogenated hydrocarbons such as dichloromethane, chloroform, carbon tetrachloride and the like; lower alcohols such as methanol, ethanol, isopropanol and the like; polar solvents such as dimethylformamide (DMF), dimethyl sulfoxide (DMSO), hexamethylphosphoric triamide, pyridine, acetone, actonitrile and the like. The basic compound used can be exemplified by inorganic bases such as potassium carbonate, sodium carbonate, sodium hydroxide, potassium hydroxide, sodium hydrogencarbonate, potassium hydrogencarbonate, sodium amide, sodium hydride, potassium hydride and the like; and organic bases such as triethylamine, tripropylamine, pyridine, quinoline and the like. The above reaction proceeds advantageously when an alkali metal iodide (e.g. potassium iodide or sodium iodide) or the like is added to the reaction system. The compound of general formula (3) is added in an amount of generally at least 1 mole, preferably 1-8 moles per mole of the compound of general formula (2).

In the reaction formula 1, the lower alkanesulfonyloxy group represented by X can be exemplified by methanesulfonyloxy, ethanesulfonyloxy, isopropanesulfonyloxy, propanesulfonyloxy, butanesulfonyloxy, tert-butanesulfonyloxy, pentanesulfonyloxy and hexanesulfonyloxy. The arylsulfonyloxy group can be exemplified by substituted or unsubstituted arylsulfonyloxy groups such as phenylsulfonyloxy, 4-methylphenylsulfonyloxy, 2-methylphenylsulfonyloxy, 4-nitrophenylsulfonyloxy, 4-methoxyphenylsulfonyloxy, 3-chlorophenylsulfonyloxy, α-naphthylphenylsulfonyloxy and the like. The aralkylsulfonyloxy group can be exemplified by substituted or unsubstituted aralkylsulfonyloxy groups such as benzylsulfonyloxy, 2-phenylethylsulfonyloxy, 4-phenylbutylsulfonyloxy, 4-methylbenzylsulfonyloxy, 2-methylbenzylsulfonyloxy, 4-nitrobenzylsulfonyloxy, 4-methoxybenzylsulfonyloxy, 3-chlorobenzylsulfonyloxy, α-naphthylmethylsulfonyloxy and the like. ##STR22## [wherein W, X, A, R and the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton have the same definitions as given above.].

The reaction between a compound of general formula (4) and a Compound of general formula (5) is conducted in an appropriate solvent, preferably using a basic compound as a dehalogenating agent, generally at room temperature to 200° C., preferably at 50°-150° C. in about 1-30 hours. The appropriate solvent can be exemplified by lower alcohols such as methanol, ethanol, isopropanol and the like; ketones such as acetone, methyl ethyl ketone and the like; ethers such as diethyl ether, dioxane, diethylene glycol dimethyl ether and the like; aromatic hydrocarbons such as toluene, xylene and the like; DMF; DMSO; and hexamethylphosphoric triamide. The basic compound usable as a dehalogenating agent can be exemplified by inorganic bases such as sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium methoxide, sodium ethoxide, potassium ethoxide, sodium hydroxide, metallic potassium, sodium amide and the like; and organic bases such as pyridine, quinoline, triethylamine, tripropylamine and the like. In the reaction, it is possible to add, as a reaction accelerator, an alkali metal iodide (e.g. potassium iodide or sodium iodide) to the reaction system. The amount of the compound of general formula (5) used has no restriction, but the compound is used in an amount of generally 1-5 moles, preferably 1-2 moles per mole of the compound of general formula (4). ##STR23## [wherein A, W, R³, R⁴ and the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton have the same definitions as given above. X¹ represents a halogen atom.].

The reaction between a compound (6) and a compound (7) can be conducted under the same conditions as employed in the reaction between the compound (2) and the compound (3) shown in the Reaction formula-1. ##STR24## [wherein A, W, R⁵, R⁶ and the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton have the same definitions as given above.].

The reaction between a compound (8) and a compound (9) is conducted in the same solvent as used in the reaction between the compound (2) and the compound (3) shown in the reaction formula 1, generally at room temperature to 100° C., preferably at room temperature to about 70° C., and is complete generally in about 0.5-5 hours. The amount of the amine (9) used is generally 1-2 moles, preferably 1-1.5 moles per mole of the compound (8). ##STR25## [wherein A, W, R², X¹ and the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton have the same definitions as given above. R^(1a) represents a group ##STR26## (B, m, R⁷ and R⁸ have the same definitions as given above.); a lower alkoxycarbonyl-substituted lower alkyl group; a carboxy group-substituted lower alkyl group; a lower allyl group having as a substituent, a lower alkyl group-substituted or unsubstituted aminocarbonyl group; a hydroxyl group-containing lower alkyl group; an imidazolyl-substituted lower alkyl group; a pyridyl-substituted lower alkyl group; pyrrolidinyl-lower alkyl group which may have, as substituent(s) on the pyrrolidine ring, 1-3 groups selected from the group consisting of a lower alkyl group, a lower alkoxy-lower alkoxy group and a hydroxyl group; or a group --SO₂ D--R⁹ (wherein D and R⁹ have the same definitions as given above.). R^(2a) represents R² other than the case R² and R¹ form a pyrrolidinyl group together with the nitrogen atom to which R² and R¹ bond.].

The reaction between a compound (10) and a compound (11) can be conducted under the same conditions as employed in the reaction between the compound (2) and the compound (3) shown in the Reaction formula 1. ##STR27## [wherein A, W, R^(2a) and the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton have the same definitions as given above. R^(1b) represents a group --CO--B--(CO)_(m) --NR⁷ R⁸ (wherein B, m, R⁷ and R⁸ have the same definitions as given above.].

The reaction between a compound of general formula (10) and a compound of general formula (12) is conducted in accordance with an ordinary amide bond formation reaction. In the amide bond formation reaction, there can be easily used known processes for amide bond formation reaction. For example, there can be mentioned, (a) a mixed acid anhydride process which comprises reacting a carboxylic acid (12) with an alkylhalocarboxylic acid to obtain a mixed acid anhydride and reacting the anhydride with an amine (10); (b) an active ester process which comprises converting a carboxylic acid (12) to an active ester such as p-nitrophenyl ester, N-hydroxysuccinimide ester, 1-hydroxybenzotriazole ester or the like, and reacting the active ester with an amine (10); (c) a carbodiimide process which comprises subjecting a carboxylic acid (12) and an amine (10) to condensation in the presence of an activating agent such as dicyclohexylcarbodiimide, carbonyldiimidazole or the like; and (d) other processes, for example, a process which comprises converting a carboxylic acid (12) to a carboxylic acid anhydride using a dehydrating agent such as acetic anhydride or the like and reacting the anhydride with an amine (10), a process which comprises reacting a carboxylic acid (12) with a lower alcohol to form an ester and reacting the ester with an amine (10) at a high pressure and at a high temperature, and a process which comprises converting a carboxylic acid (12) to an acid halide (a carboxylic acid halide) and reacting the halide with an amine (10).

In the mixed acid anhydride process, the mixed acid anhydride is obtained by an ordinary Schoten-Baumann reaction and it is reacted with the amine (10) generally without being isolated, to obtain a compound of general formula (1f). The Schotten-Baumann reaction is conducted in the presence of a basic compound. The basic compound can be any of those generally used in the Schotten-Baumann reaction, and includes, for example, organic bases such as potassium carbonate, triethylamine, trimethylamine, pyridine, dimethylaniline, N-methylmorpholine, 1,5-diazabicyclo[4.3.0]nonene-5 (DBN), 1,8-diazabicyclo[5.4.0]undecene-7 (DBU), 1,4-diazabicyclo[2.2.2]octane (DABCO) and the like, and inorganic bases such as sodium carbonate, potassium hydrogencarbonate, sodium hydrogencarbonate and the like. The reaction is conducted generally at about -20° to 100° C., preferably at about -0°-50° C., and is complete in 5 minutes to 10 hours, preferably 5 minutes to 2 hours. The reaction of the thus obtained mixed acid anhydride with the amine (10) is conducted generally at about -20° to 150° C., preferably at about 10°-50° C., and is complete in 5 minutes to 10 hours, preferably 5 minutes to 5 hours. The mixed acid anhydride process is conducted generally in a solvent. Any solvent generally used in the mixed acid anhydride process can be used. Specific examples of the solvent are halogenated hydrocarbons such as methylene chloride, chloroform, dichloroethane and the like; aromatic hydrocarbons such as benzene, toluene, xylene and the like; ethers such as diethyl ether, tetrahydrofuran, dimethoxyethane and the like; esters such as methyl acetate, ethyl acetate and the like; and aprotic polar solvents such as DMF, DMSO, hexamethylphorphoric triamide and the like. The alkylhalocarboxylic acid used in the mixed acid anhydride process includes, for example, methyl chloroformate, methyl bromoformate, methyl chloroformate, ethyl bromoformate and isobutyl chloroformate. In the process, the proportions of carboxylic acid (12), alkylhalocarboxylic acid and amine (10) used are generally each 1 mole, but the first and second compounds are preferably used each in an amount of 1-1.5 moles per mole of the amine (10).

When there is used the process which comprises reacting a carboxylic acid halide with an amine (10), the reaction is conducted in an appropriate solvent in the presence of a basic compound. As to the basic compound, there can be widely used known compounds. They include, for example, the basic compounds used in the above Schotten-Baumann reaction, sodium hydroxide, potassium hydroxde, sodium hydride, potassium hydride, silver carbonate and alcoholates (e.g. sodium methylate, sodium ethylate). The solvent includes, for example, the solvents usable in the above mixed acid anhydride process, alcohols (e.g. methanol, ethanol, propanol, butanol, 3-methoxy-1-butanol, ethyl celloslve, methyl cellosolve), pyridine, acetone, acetonitrile and mixtures thereof. The proportions of the amine (10) and the carboxylic acid halide used are not critical and can be selected in wide ranges, but the latter is used in an amount of generally about 1 mole, preferably about 1-5 moles per mole of the former. The reaction is conducted generally at about -30° to 180° C., preferably at about 0°-150° C., and is complete generally in about 5 minutes to 30 hours. ##STR28## [wherein A, W, X and the carbon-to-carbon bond between the 3-and 4-positions of the carbostyril skeleton have the same definitions as given above. R^(2b) represents a cycloalkyl-lower alkyl group; a cycloalkyl group; a phenyl group; a phenyl-lower alkyl group which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a halgoen atom, a lower alkyl group, a cyano group, a carboxy group and a lower alkoxy group; a pyrrolidyl-substituted alkyl group; a thienyl-substituted lower alkyl group; a tetrahydropyranyl-substituted lower alkyl group; a phenyl-lower alkylsulfonyl group; a phenylsulfonyl group; or acycloalkyl-lower alkylsulfonyl group. R^(1c) represents the above-mentioned R^(1a) and R^(1b).].

The reaction between a compound (13) and a compound (14) can be conducted under the same conditions as employed in the reaction between the compound (2) and the compound (3) shown in the Reaction formula-1. ##STR29## [wherein A, W, R^(1c) and the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton have the same definitions as given above. R^(2c) represents a cycloalkylcarbonyl group or a benzoyl group.].

The reaction between a compound (13) and a compound (15) can be conducted under the same conditions as employed in the reaction between the compound (10) and the compound (12) shown in the Reaction formula-6. ##STR30## [wherein A, W, X¹, R³, R⁴ and the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton have the same definitions as given above. R^(3a) represents the above-mentioned R³ other than the case R³ is a hydrogen atom. R^(4a) represents the above-mentioned R^(4a) other than the case R⁴ is a hydrogen atom.].

The reaction between a compound (16) and a compound (17) and the reaction between a compound (18) and a compound (19) can be conducted under the same conditions as employed in the reaction between the compound (2) and the compound (3) shown in the Reaction formula-1. ##STR31## [wherein A, W, Y, R⁵, R⁶ and the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton have the same definitions as given above. R^(5a) represents the above-mentioned R⁵ other than the cace R⁵ is a hydrogen atom, and R^(6a) represents the above-mentioned R⁶ other than the cace R⁶ is a hydrogen atom.].

The reaction between a compound (20) and a compound (21) and the reaction between a compound (22) and a compound (23) can be conducted under the same conditions as employed in the reaction between the compound (2) and the compound (3) shown in the Reaction formula-2. ##STR32## [wherein A, W, R², D and the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton have the same definitions as given above. R^(9a) represents a halogen atom. R^(9b) represents a five- or six-membered saturated or unsaturated heterocyclic ring residue containing 1-3 nitrogen atoms, which residue may have, as substituent(s), a hydroxyl group, a lower alkoxy-lower alkoxy group, a lower alkoxycarbonyl group or a lower alkyl group which may be substituted with a lower alkoxy-lower alkoxy group or a hydroxyl group.].

The reaction between a compound (24) and a compound (25) can be conducted under the same conditions as employed in the reaction between the compound (2) and the compound (3) shown in the Reaction formula-1. ##STR33## [wherein A, R and the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton have the same definitions as given above.].

The reaction between a compound (1n) and phosphorus pentasulfide or a Lawesson's reagent represented by the formula, ##STR34## is conducted in an ordinary inert solvent such as aromatic hydrocarbon (e.g. benzene, toluene, xylene, chlorobenzene), ether (e.g. diethyl ether, tetrahydrofuran, dioxane), halogenated hydrocarbon (e.g. methylene chloride, chloroform), dimethyl sulfoxide, hexamethylphosphoric triamide or the like. The amount of phosphorus pentasulfide or Lawesson's reagent used is generally 0.2 mole to a large excess, perferably 0.4-2 moles per mole of the compound (1n). The reaction temperature is generally room temperature to 200° C., preferably 50°-150° C., and the reaction time is 0.5-50 hours. ##STR35## [wherein A, W and R have the same definitions as given above.].

The reduction of a compound of general formula (1q) is conducted under the conditions of ordinary catalytic reduction. The catalyst used can be exemplified by metals such as palladium, palladium-carbon, platinum, Raney nickel and the like. Such a metal is used preferably in an ordinary catalytic amount. The solvent used includes, for example, alcohols such as methanol, ethanol, isopropanol and the like; ethers such as dioxane, tetrahydrofuran and the like; aliphatic hydrocarbons such as hexane, cyclohexane and the like; esters such as ethyl acetate and the like; and fatty acids such as acetic acid and the-like. The reduction can be conducted at atmospheric pressure or under pressure, but is conducted generally at about atmospheric pressure to 20 kg/cm², preferably at atmospheric pressure to 10 kg/cm². The reaction temperature is generally about 0°-150° C., preferably about room temperature to 100° C.

The dehydrogenation of a compound of general formula (1p) is conducted in an appropriate solvent, using an oxidizing agent. The oxidizing agent includes, for example, benzoquinones such as 2,3-dichloro-5,6-dicyanobenzoquinone, chloranil (2,3,5,6-tetrachlorobenzoquinone) and the like; halogenating agents such as N-bromosuccinimide, N-chlorosuccinimide, bromine and the like; selenium dioxide; palladium-carbon; palladium black; palladium oxide; and hydrogenation catalysts such as Raney nickel and the like. The amount of the halogenating agent used is not critical and can be approprately selected from a wide range, but is used in an amount of generally about 1-5 moles, preferably about 1-2 moles per mole of the compound of general formula (1p). When a hydrogenation catalyst is used, it is used in an ordinary catalystic amount. The solvent can be exemplified by ethers such as dioxane, tetrahydrofuran, methoxyethanol, dimethoxyethane and the like; aromatic hydrocarbons such as benzene, toluene, xylene, cumene and the like; halogenated hydrocarbons such as dichloromethane, dichloroethane, chloroform, carbon tetrachloride and the like; alcohols such as butanol, amyl alcohol, hexanol and the like; polar protonic solvents such as acetic acid and the like; and polar aprotic solvents such as dimethylformamide, dimethyl sulfoxide, hexamethylphosphoric triamide and the like. The reaction is conducted generally at about room temperature to 300° C., preferably at about room temperature to 200° C. and is complete generally in 1-40 hours.

The compounds (3), (7) and (9) each as starting material can be easily produced by, for example, the processes shown by the following reaction formulas. ##STR36## [wherein R^(2a), R^(1c), R^(4a), R^(3a), R^(6a), R^(5a), R³, R⁴, R⁵, R⁶ and X¹ have the same definitions as given above.].

The reaction between a compound (26) and a compound (27), the reaction between a compound (28) and a compound (29), the reaction between a compound (30) and a compound (17), the reaction between between a compound (31) and a compound (19), the reaction between a compound (32) and a compound (21) and the reaction between a compound (33) and a compound (23) can be conducted under the same conditions as employed in the reaction between the compound (2) and the compound (3) shown in the Reaction formula-1. ##STR37## wherein R^(2a), B, m, X¹, R⁷, R⁸, R⁴, R¹⁰, R¹¹ and R⁵ have the same definitions as given above. X² represents a halogen atom. E¹ represents a hydroxyl group-substituted or unsubstituted lower alkylene group. A¹ represents a lower alkylene group. R^(6b) represents a piperidinyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group as a substituent on the piperidinyl ring.].

The reaction between a compound (26) and a compound (34), the reaction between a compound (31) and a compound (38) and the reaction between a compound (32) and a compound (42) can be conducted under the same conditions as employed in the reaction between the compound (2) and the compound (3) shown in the Reaction formula-1. The reaction between a compound (35) and a compound (37), the reaction between a compound (39) and a compound (40) and the reaction between a compound (43) and a compound (44) can also be conducted under the same conditions as employed in the reaction between the compound (2) and the compound (3) shown in the Reaction formula-1.

The reduction of a compound (37), (41) or (45) is conducted in an appropriate solvent in the presence of a hydride and reducing agent. The reducing agent includes, for example, sodium boron hydride, lithium aluminum hydride and diborane. The amount of reducing agent used is at least about 1 mole , preferably about 1-3 moles per mole of the starting material. When lithium aluminum hydride is used as the reducing agent, it is used in an amount of preferably about the same weight as that of the starting material. The solvent includes, for example, water; alcohols such as methanol, ethanol, isopropanol and the like; and ethers such as tetrahydrofuran, diethyl ether, diglyme and the like. The reaction is conducted generally at about -60° C. to 150° C., preferably at about -30° C. to 100° C., and is complete generally in about 10 minutes to 15 hours. When lithium aluminum hydride or diborane is used as the reducing agent, an anhydrous solvent such as diethyl ether, 10 tetrahydrofuran, diglyme or the like is used preferably. ##STR38## [wherein R^(1d) represents a group ##STR39## (m, R⁷ and R⁸ have the same definitions as given above.), a lower alkoxycarbonyl group, a carboxy group, a lower alkyl group-substituted or unsubstituted aminocarbonyl group, a hydroxyl group, an imidazolyl group, a pyridyl group or a pyrrolidinyl group which may have, as substituent(s) on the pyrrolidine ring, 1-3 groups selected from the group consisting of a lower alkyl group, a lower alkoxy-lower alkoxy group and a hydroxyl group. p represents 0 or 1. R^(2d) represents a cycloalkyl-lower alkyl group, a cycloalkyl group, a phenyl group, a phenyl-lower alkyl group which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group, a cyano group, acarboxy group and a lower alkoxy group, a pyridyl-substituted lower alkyl group, a thienyl-substituted lower alkyl group, a cycloalkylcarbonyl group, a benzoyl group, a tetrahydropyranyl-substituted lower alkyl group, a phenyl-lower alkylsulfonyl group, a phenylsulfonyl group or a cycloalkyl-lower alkylsulfonyl group. A¹ has the same definition as given above.].

The reaction between a compound of general formula (46) and a compound of general formula (47) is conducted in an appropriate solvent or in the absence of any solvent in the presence or absence of a dehydrating agent. The solvent includes, for example, alcohols such as methanol, ethanol, isopropanol and the like; aromatic hydrocarbons such as benzene, toluene, xylene and the like; and aprotic polar solvents such as dimethylformamide, dimethylacetamide, N-methylpyrrolidone and the like. The dehydrating agent includes, for example, drying agents ordinarily used in dehydration of solvent, such as molecular sieve and the like; mineral acids such as hydrochloric acid, sulfuric acid, boron trifluoride and the like; and organic acids such as p-toluenesulfonic acid and the like. The reaction is conducted generally at about room temperature to 200° C., preferably at about room temperature to 150° C., and is complete generally in about 1-48 hours. The amount of the compound of general formula (47) used is not critical, but is generally at least about 1 mole , preferably about 1-15 moles per mole of the compound of general formula (46). The amount of the dehydrating agent used is generally a large excess when a dryng agent is used, and is a catalytic amount when an acid used. The thus obtained compound of general formula (48) is used in the subsequent reduction without being isolated.

The reduction of the compound of general formula (48) can be conducted by various methods. For example, there is preferably used a method using a hydride reducing agent. The hydride and reducing agent includes, for example, lithium aluminum hydride, sodium boron hydride and diborane. The amount of the reducing agent used is at least about 1 mole , preferably about 1-10 moles per mole of the compound of general formula (48). The reduction is conducted generally in an appropriate solvent such as water, lower alcohol (e.g. methanol, ethanol, isopropanol), ether (e.g. tetrahydrofuran, diethyl ether, diglyme) or the like, generally at about -60° C. to 50° C., preferably at about -30° C. to room temperature for about 10 minutes to 5 hours. An anhydrous solvent such as diethyl ether, tetrahydrofuran, diglyme or the like is preferably used when there is used, as the reducing agent, lithium aluminum hydride or diborane.

The reduction of the compound of general formula (48) can be conducted also by subjecting the compound to catalytic hydrogenation in the presence of a catalyst in an appropriate solvent. The solvent includes, for example, water; acetic acid; alcohols such as methanol, ethanol, isopropanol and the like; hydrocarbons such as hexane, cyclohexane and the like; ethers such as dioxane, tetrahydrofuran, diethyl ether, ethylene glycol dimethyl ether and the like; esters such as ethyl acetate, methyl acetate and the like; and aprotic polar solvents such as dimethylformamide and the like. The catalyst includes, for example, palladium, palladium black, palladium-carbon, platinum, platinum oxide, copper chromite and Raney nickel. The amount of the catalyst used is generally about 0.02-1 time the amount of the compound of general formula (48). The reaction temperature is generally at about -20° C. to 150° C., preferably at about 0°-100° C.; the hydrogen pressure is generally about 1-10 atm; and the reaction is complete generally in about 0.5-10 hours. ##STR40## [wherein A¹ and p are the same as defined above; R^(2e) represents a cycloalkyl group, a phenyl group which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group, a cyano group, a carboxy group and a lower alkoxy group, a pyridyl group, a thienyl group or a tetrahydropyranyl group. R^(1c) has the same definition as given above.].

The reaction between a compound (49) and a compound (50) can be conducted under the same conditions as employed in the reaction between the compound (46) and the compound (47) shown in the reaction formula 16.

The reaction for converting a compound (51) to a compound (3d) can be conducted under the same conditions as employed in the reaction for converting the compound (48) to the compound (3c). ##STR41## [wherein R^(3a), A¹, R^(4a), R^(5a) and R^(6a) and have the same definitions as given above. R^(4b) represents a cycloalkyl group, a phenyl group which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group and a lower alkoxy group, a thienyl group, a pyridyl group, an imidazolyl group or a tetrahydropyranyl group. R^(5b) and R^(6b) independently represent a hydrogen atom, a cycloalkyl group or a piperidinyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group as a substituent on the piperidinyl ring.].

The reaction between a compound (52) and a compound (53), the reaction between a compound (55) and a compound (56), the reaction between a compound (58) and a compound (59) and the reaction between a compound (61) and a compound (62) can be conducted under the same conditions as employed in the reaction between the compound (46) and the compound (47) shown in the Reaction formula-16.

The reaction for converting a compound (54) to a compound (7d), the reaction for converting a compound (57) to a compound (7e), the reaction for converting a compound (60) to a compound (9d) and the reaction for converting a compound (63) to a compound (9e) can be conducted under the same conditions as employed in the reaction for converting the compound (48) to the compound (3c) shown in the Reaction formula-16. ##STR42## [wherein Z represents a cycloalkyl group R^(1c), R^(3a) and R^(5a) have the same definitions as given above.].

The reaction between a compound (64) and a compound (50), the reaction between a compound (64) and a compound 56) and the reaction between a compound (64) and a compound (62) can be conducted under the same conditions as employed in the reaction between the compound (46) and the compound (47) shown in the Reaction formula-16.

The reaction for converting a compound (65) to a compound (3e), the reaction for converting a compound (66) to a compound (7f) and the reaction for converting a compound (67) to a compound (9f) can be conducted under the same conditions as employed in the reaction for converting the compound (48) to the compound (3c) shown in the Reaction formula-16).

The compound (5) used as a starting material can be produced by, for example, the following processes. ##STR43## [wherein R³, R⁴, X, A and X¹ have the same definitions as given above.].

The reaction between a compound (7) and a compound (68) can be conducted under the same conditions as employed in the reaction between the compound (2) and the compound (3) shown in the Reaction formula-1. ##STR44## [wherein X, A, R⁵ and R⁶ have the same definitions as given above.].

The reaction between a compound (74) and a compound (9) can be conducted under the same conditions as employed in the reaction between the compound (8) and the compound (9) shown in the Reaction formula-4. ##STR45## [wherein R¹² represents a pyrrolidinyl group which may have, as a substituent, a hydroxyl group, a lower alkoxy-lower alkoxy group, a lower alkyl group which may be substituted with a lower alkoxy-lower alkoxy group or a hydroxyl group, a lower alkoxycarbonyl group, a piperidinylcarbonyl group or an aminocarbonyl group which may be substituted with a cycloalkyl-lower alkyl group. R¹³ represents a cycloalkyl-lower alkyl group or a hydrogen atom.].

The reaction between a compound (69) and a compound (70) can be conducted under the same conditions as employed in the reaction between the compound (10) and the compound (12) shown in the reaction formula 6. In the reaction, it is possible to protect the 1-position of the pyrrolidine ring with a protecting group, for example, a phenyl-lower alkoxycarbonyl group (e.g. a benzyloxycarbonyl group), react the protected compound with a compound (70) and reduce the reaction product under the same conditions as employed in the reduction of the compound (48) by catalytic hydrogenation, shown in the Reaction formula-16, to conduct deprotection. ##STR46## [wherein X¹, X, A, R³ and R⁴ have the same definitions as given above.].

The reaction between a compound (72) and a compound (7) can be conducted under the same conditions as employed in the reaction between the compound (2) and the compound (3) shown in the Reaction formula-1.

The reaction for converting a compound (73) to a compound (1r) can be conducted by heating the compound (73) in the presence of an acid or a basic compound. The acid can be exemplified by inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid and the like, and organic acids such as acetic acid and the like. The basic compound can be exemplified by inorganic bases such as sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium hydrogencarbonate, potassium hydrogencarbonate and the like. The reaction is conducted generally at about 50°-150° C., preferably at about 70°-120° C., and is complete generally in about 0.5-24 hours. ##STR47## [wherein A, R⁵, ⁶ R, W and the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton have the same definitions as given above.].

The reaction between a compound (75) and a compound (9) can be conducted under the same conditions as employed in the reaction between the compound (10) and the compound (12) shown in the Reaction formula-16.

The reaction between a compound (76) and phosphorus pentasulfide or a Lawesson's reagent can be conducted under the same conditions as employed in the reaction between the compound (1n) and phosphorus pentasulfide or a Lawesson's reagent, shown in the Reaction formula-12. In the reaction, there can be obtained a compound wherein only the carbonyl group of side chain amide group has been subjected to thiocarbonylation, or a compound wherein both the carbonyl group of side chain amide group and the carbonyl group of 2-position of carbostyril skeleton have been subjected to thiocarbonylation.

When the compound (1s) is a compound (1) wherein R⁷ and R⁸ or R¹⁰ and R¹¹ form a five- or six-membered saturated heterocyclic ring together with the nitrogen atom to which they bond and further with or without a nitrogen, oxygen or sulfur atom which may be present between R⁷ and R⁸ or R¹⁰ and R¹¹ and said heterocyclic ring has a lower alkoxy-lower alkoxy group as a substituent, a compound (1) wherein R⁹ is a five- or six-membered saturated or unsaturated heterocyclic ring residue having 1-3 nitrogen atoms and said heterocyclic ring residue has a lower alkoxy-lower alkoxy group, a compound (1) wherein R¹ and R³ form a pyrrolidinyl group together with the nitrogen atom to which they bond and said pyrrolidinyl group has a lower alkoxy-lower alkoxy group as a substituent, a compound (1) wherein R¹ or R³ is a pyrrolidinyl-lower alkyl group which has, as substituent(s) on the pyrrolidine ring, at least one lower alkoxy-lower alkoxy group, or a compound (1) wherein R⁵ or R⁶ is a piperidinyl-lower alkyl group which has, as substituent(s) on the piperidinyl ring, at least one lower alkoxy-lower alkoxy group, these compounds (1) can be converted by hydrolysis, to a compound (1) wherein R⁷ and R⁸ or R¹⁰ and R¹¹ form the above heterocyclic ring group having a hydroxyl group as a substituent, a compound (1) wherein R⁹ is the above heterocyclic ring group having a substituent, a compound (1) wherein R¹ or R.sup. 3 is a pyrrolidinyl-lower alkyl group having at least one hydroxyl group as substituent(s) on the pyrrolidine ring, and a compound (1) wherein R⁵ or R⁶ is a piperidinyl-lower alkyl group having at least one hydroxyl group as substituent(s) on the piperidinyl ring, respectively.

The above hydrolysis can be conducted under the conditions employed in ordinary hydrolysis. The hydrolysis is conducted generally in the presence of a basic compound, a mineral acid, an organic acid or the like in an appropriate solvent. The basic compound includes, for example, sodium hydroxide, potassium hydroxide, barium hydroxide and potassium carbonate; the mineral acid includes, for example, sulfuric acid, hydrochloric acid and nitric acid; and the organic acid includes, for example, acetic acid, aromatic sulfonic acids (e.g. p-toluenesulfonic acid) and Lewis acids (e.g. boron trichloride). The solvent includes, for example, water; alcohols such as methanol, ethanol, isopropanol and the like; ketones such as acetone, methyl ethyl ketone and the like; ethers such as dioxane, tetrahydrofuran, ethylene glycol dimethyl ether and the like; acetic acid; and mixtures thereof. The reaction proceeds generally at about room temperature to 200° C., preferably at about room temperature to 150° C., and is complete generally in about 0.5-30 hours.

A compound (1) wherein R¹ or R³ is a lower alkoxycarbonyl group-substituted lower alkyl group, can be converted by hydrolysis to a compound (1) wherein R¹ or R³ is a carboxy group-substituted lower alkyl group.

The hydrolysis can be carried out in the presence of an acid or a basic compound in an appropriate solvent or in the absence of any solvent. The solvent includes, for example, water; lower alcohols such as methanol, ethanol, isopropanol and the like; ketones such as acetone, methyl ethyl ketone and the like; ethers such as dioxane, tetrahydrofuran, ethylene glycol dimethyl ether and the like; fatty acids such as acetic acid, formic acid and the like; and mixed solvents thereof. The acid includes, for example, mineral acids such as hydrochloric acid, sulfuric acid, hydrobromic acid and the like, and organic acids such as formic acid, acetic acid, aromatic sulfonic acids and the like. The basic compound includes, for example, metal carbonates such as sodium carbonate, potassium carbonate and the like, and metal hydroxides such as sodium hydroxide, potassium hydroxide, calcium hydroxide and the like. The reaction proceeds favorably generally at about room temperature to 200° C., preferably at about room temperature to 150° C., and is complete generally in about 0.5-25 hours.

A compound (1) wherein R¹ is a group ##STR48## and a compound (1) wherein R³ is a group ##STR49## can be converted, by reduction under the same conditions as employed in the reduction of the compound (37) shown in the reaction formula 15, to a compound (1) wherein R is a group ##STR50## and a compound (1) wherein R³ is a group ##STR51## respectively.

A compound (1) wherein wherein R⁷ and R⁸ or R¹⁰ and R¹¹ form a five- or six-membered saturated heterocyclic ring together with the nitrogen atom to which they bond and further with or without a nitrogen, oxygen or sulfur atom which may be present between R⁷ and R⁸ or R¹⁰ and R¹¹ and said heterocyclic ring has, as a substituent, a lower alkyl group having at least one lower alkoxy-lower alkoxy group, a compound (1) wherein R⁹ is a five- or six-membered saturated or unsaturated heterocyclic ring residue having 1-3 nitrogen atoms and said heterocyclic ring residue has a lower alkyl group having at least one lower alkoxy-lower alkoxy group, and a compound (1) wherein R¹ and R² form a pyrrolidinyl group together with the nitrogen atom to which they bond and said pyrrolidinyl group has, as a substituent, a lower alkyl group having at least one lower alkoxy-lower alkoxy group, can be converted, by hydrolysis under the same conditions as employed in the hydrolysis of each of the above-mentioned compounds (1) each having a heterocyclic ring having a lower alkoxy-lower alkoxy group as a substituent, to a compound (1) wherein R⁷ and R⁸ or R¹⁰ and R¹¹ form a five- or six-membered saturated heterocyclic ring together with the nitrogen atom to which they bond and further with or without a nitrogen, oxygen or sulfur atom which may be present between R⁷ and R⁸ or R¹⁰ and R¹¹ and said heterocyclic ring has, as a substituent, a lower alkyl group having at least one hydroxyl group, a compound (1) wherein R⁹ is a five- or six-membered saturated or unsaturated heterocyclic ring residue having 1-3 nitrogen atoms and said heterocyclic ring residue has a lower alkyl group having at least one hydroxyl group, and a compound (1) wherein R¹ and R² form a pyrrolidinyl group together with the nitrogen atom to which they bond and said pyrrolidinyl group has, as a substituent, a lower alkyl group having at least one hydroxyl group, respectively.

A compound (1) wherein R³, R⁷ or R⁸ is a hydroxyl group-substituted lower alkyl group, can be converted, by protecting the hydroxyl group with, for example, a tetrahydropyranyloxy group or a lower alkylenedioxy group (e.g. a 1,1-dimethylmethylenedioxy group), subjecting the protected compound to the reactions shown in the reaction formulas 2-22 and deprotecting the protected group, to a desired compound (1) wherein R³, R⁷ or R⁸ is a hydroxyl group-substituted lower alkyl group. The deprotection is conducted by hydrolysis under the same conditions as employed in the hydrolysis of each of the above-mentioned compounds (1) each having a heterocyclic ring having a lower alkoxy-lower alkoxy group as a substituent.

A compound (1) wherein R⁷ or R⁸ is a hydrogen atom, can be converted, by protecting the site to which the hydrogen atom bonds, with a lower alkoxycarbonyl group (e.g. a tert-butoxycarbonyl group), subjecting the protected compound to the reactions shown in the reaction formulas 2-22 and deprotecting the protected group, to a desired compound (1) wherein R⁷ or R⁸ is a hydrogen atom. The deprotection is conducted by hydrolysis under the same conditions as employed in the hydrolysis of the above-mentioned compound wherein R¹ or R³ is a lower alkoxycarbonyl-substituted lower alkyl group.

The carbostyril derivative represented by general formula (1) according to the present invention can be easily converted to an acid addition salt by allowing a pharmaceutically acceptable acid to act on the derivative. The acid includes, for example, inorganic acids such as hydrochloric acid, sulfuric acid, phosphoric acid, hydrobromic acid and the like, and organic acids such as oxalic acid, maleic acid, fumaric acid, malic acid, tartaric acid, citric acid, benzoic acid and the like.

The carbostyril derivative represented by general formula (1) according to the present invention, which has an acidic group, can be easily converted to a salt by allowing a pharmaceutically acceptable basic compound to act on the derivative. The basic compound includes, for example, sodium hydroxide, potassium hydroxide, calcium hydroxide, sodium carbonate and potassium hydrogencarbonate.

The products thus obtained in each step can be isolated and purified by ordinary separation means. The separation means can be exemplified by solvent extraction, dilution, recrystallization, column chromatography and preparative thin-layer chromatography.

Needless to say, the compounds of the present invention include optical isomers.

The compound of general formula (1) is generally used in the form of ordinary pharmaceutical preparations. The pharmaceutical preparations are prepared using diluents or excipients ordinarily used, such as filler, bulking agent, binder, humectant, disintegrator, surfactant, lubricant and the like. The pharmaceutical preparations can be used in various forms depending upon the purpose of remedy, and typical forms include tablets, pills, powders, solutions, suspensions, emulsions, granules, capsules, suppositories, injections (solutions, suspensions, etc.), etc. In preparing tablets, various carriers conventionally known in the art can be used. The carriers can be exemplified by excipients such as lactose, white sugar, sodium chloride, grape sugar, urea, starch, calcium carbonate, kaolin, crystalline cellulose, silicic acid and the like; binders such as water, ethanol, propanol, simple syrup, grape sugar solution, starch solution, gelatin solution, carboxymethyl cellulose, shellac, methyl cellulose, potassium phosphate, polyvinylpyrrolidone and the like; disintegrators such as dry starch, sodium alginate, powdered agar, powdered laminaran, sodium hydrogencarbonate, calcium carbonate, polyoxyethylene sorbitan-fatty acid esters, sodium lauryl sulfate, stearic acid monoglyceride, starch, lactose and the like; disintegration inhibitors such as white sugar, stearin, cacao butter, hydrogenated oil and the like; absorption promoters such as quaternary ammonium salts, sodium lauryl sulfate and the like; humectants such as glycerine, starch and the like; adsorbents such as starch, lactose, kaolin, bentonite, colloidal silicic acid and the like; and lubricants such as refined talc, stearic acid salts, boric acid powder, polyethylene glycol and the like. The tablets can be prepared, as necessary, in the form of ordinary coated tablets, such as sugar-coated tablets, enteric coated tablets or film-coated tablets, or in the form of double-layered tablets or multi-layered tablets. In preparing pills, various carriers conventionally known in the art can be used. The carriers can be exemplified by excipients such as glucose, lactose, starch, cacao butter, hardened vegetable oils, kaolin, talc and the like; binders such as powdered acacia, powdered tragacanth, gelatin, ethanol and the like; and disintegrators such as laminaran, agar and the like. In preparing suppositories, various carriers conventionally known in the art can be used. The carriers can be exemplified by a polyethylene glycol, cacao butter, a higher alcohol, a higher alcohol ester, gelatin and a semi-synthetic glyceride. In preparing injections in the form of solution or suspension, they are sterilized and preferably isotonic to blood. In preparing these solutions, pills and suspensions, there can be used all of the diluents conventionally used in the art, such as water, ethyl alcohol, propylene glycol, ethoxylated isostearyl alcohol, polyoxyisostearyl alcohol and polyoxyethylene sorbitan-fatty acid ester. In this case, the injections may contain sodium chloride, glucose or glycerine in an amount sufficient to make the injections isotonic, and may further contain a solubilizing agent, a buffer solution, a soothing agent, etc. all ordinarily used. The pharmaceutical preparations may furthermore contain, as necessary, a coloring agent, a preservative, a perfume, a flavoring agent, a sweetening agent and other drugs.

The amount of the compound of general formula (1) to be contained in the present pharmaceutical preparation is not particularly restricted and can be selected in a wide range, and is generally 1-70% by weight, preferably 1-30% by weight in the pharmaceutical preparation.

The method for administering the present pharmaceutical preparation is not particularly restricted. The pharmaceutical preparation can be administered in various methods depending upon the form of preparation, the age, sex and other conditions of patient, the degree of disease condition of patient, etc. For example, tablets, pills, a solution, a suspension, an emulsion, granules or capsules are administered orally. An injection is intravenously administered singly or in admixture with an ordinary auxiliary solution of grape sugar, amino acid or the like, or, as necessary, is singly administered intramuscularly, intradermally, subcutaneously or intraperitoneally. Suppositories are administered intrarectally.

The dose of the pharmaceutical preparation of the present invention is appropriately selected depending upon the administration method, the age, sex and other conditions of patient, the degree of disease condition of patient, etc., and is generally about 0.1-10 mg per kg of body weight per day in terms of the amount of the active ingredient, i.e. the compound (1) of general formula (1). Preferably, each administration unit form contains the active ingredient in an amount of 1-200 mg.

[EXAMPLES]

Reference Examples, Examples, Pharmacological Test Results and Preparation Examples are shown below.

Reference Example 1

27 g of 1-(2-aminoethyl)-4-methoxymethoxypiperidine was dropwise added to a solution of 15 g of benzaldehyde in 300 ml of ethanol, at room temperature. The mixture was stirred at the same temperature for 1 day. To the reaction mixture was added 5 g of 10% Pd-C, and the resulting mixture was allowed to absorb hydrogen at room temperature at atmospheric pressure. After a reaction was over, the catalyst was removed by filtration. The filtrate was diluted with ethyl acetate. The dilution was subjected to extraction with 10% hydrochloric acid. The aqueous layer was made alkaline with an aqueous potassium hydroxide solution and then subjected to extraction with ethyl acetate. The extract was washed with water and dried with magnesium sulfate. The solvent was removed by distillation. The resulting residue was purified by a silica gel column chromatography (eluant: 10% methanol-chloroform) to obtain 25.50 g of 1-(2-benzylaminoethyl)-4-methoxymethoxypiperidine.

Light yellow oil

¹ H-NMR (CDCl₃) δ; 1.35-1.75 (4H, m), 1.75-2.0 (2H, m), 2.0-2.2 (2H, m), 2.47 (2H, t, J=6.1 Hz), 2.69 (2H, t, J=6.1 Hz), 3.37 (3H, s), 3.5-3.7 (1H, m), 3.80 (2H, s), 4.68 (2H, s), 7.2-7.4 (5H, m).

Reference Example 2

1.7 ml of chloroacetyl chloride was dropwise added to a solution of 3.0 g of aniline hydrochloride and 7 ml of triethylamine in 30 ml of dichloromethane. The mixture was stirred at room temperature for 3 hours, then washed with water and a saturated aqueous sodium hydrogencarbonate solution in this order, and dried with magnesium sulfate. The solvent was removed by distillation. The resulting residue was crystallized from ethyl acetate-n-hexane to obtain 2.45 g of N-(2-chloroacetyl)aniline as a light brown solid. A suspension of 2.45 g of the N-(2-chloroacetyl)-aniline, 2.8 g of 4-methoxymethoxypiperidine, 2.45 g of sodium iodide and 2.3 ml of triethylamine dissolved in 30 ml of acetonitrile was refluxed for 1.5 hours. The reaction mixture was diluted with ethyl acetate. The dilution was washed with water and dried with magnesium sulfate. The solvent was removed by distillation. The resulting residue was purified by a silica gel column chromatography (eluant: ethyl acetate: n-hexane=1:1) to obtain 3.64 g of 1-(anilinocarbonylmethyl)-4-methoxymethoxypiperidine as a light yellow oil.

A solution of 3.64 g of 1-(anilinocarbonylmethyl)-4-methoxymethoxypiperidine in 10 ml of tetrahydrofuran was added to a suspension of 630 mg of lithium aluminum hydride in 50 ml of tetrahydrofuran. The mixture was refluxed for 3 hours. To the reaction mixture were added 1.5 ml of an aqueous solution containing 10% of potassium hydroxide and 1.5 ml of water. The mixture was diluted with ethyl acetate, and the dilution was filtered. The solvent in the filtrate was removed by distillation to obtain 3.41 g of 1-(2-anilinoethyl)-4-methoxymethoxypiperidine.

Brown oil

¹ H-NMR (CDCl₃) δ; 1.6-1.7 (2H, m), 1.9 (2H, m), 2.2 (2H, m), 2.60 (2H, t, J=6 Hz), 2.9 (2H, m), 3.14 (2H, t, J=6 Hz), 3.37 (3H, s), 3.6 (1H, m), 4.69 (2H, s), 6.7 (2H, m), 7.18 (2H, dd, J=7.3 Hz, 8.5 Hz).

Reference Example 3

13.4 g of dicyclohexylcarbodiimide was added, at room temperature, to a solution of 19.3 g of 1-benzyloxycarbonyl-4-methoxymethoxy-L-proline, 8.5 ml of cyclohexylmethylamine and 7.5 g of N-hydroxysuccinimide in 200 ml of dioxane. The mixture was stirred at the same temperature for 2 hours, then heated at 60° C. for 1 hour, and allowed to cool, followed by filtration. The solvent in the filtrate was removed by filtration. The resulting residue was purified by a silica gel column chromatography (eluant; 5% methanol/chloroform) to obtain 21.2 g of N-(1-benzyloxycarbonyl-4-methoxymethoxy-L-prolyl)-N-cyclohexylmethylamine as a light yellow oil.

21.2 g of the obtained N-(1-benzyloxycarbonyl-4-methoxymethoxy-L-prolyl)-N-cyclohexylmethylamine was dissolved in 200 ml of ethanol. To the solution was added 2 g of 10% Pd-C. The mixture was subjected to hydrogenation for 3 hours. The catalyst was removed by filtration. The solvent in the filtrate was removed by distillation to obtain 14.9 g of N-(4-methoxymethoxy-L-prolyl)-N-cyclohexylmethylamine.

Light yellow oil

¹ H-NMR (CDCl₃) δ; 0.9-1.8 (11H, m), 2.0 (1H, m), 2.5 (1H, m), 2.96 81H, dd, J=3.8 Hz, 12.5 Hz), 3.08 (2H, dd, J=6.5 Hz, 12.5 Hz), 3.24 (1H, d, J=12.5 Hz), 3.37 (3H, s), 4.15 (1H, t, J=8.3 Hz), 4.3 (1H, m), 4.62 (1H, d, J=7 Hz), 4.66 (1H, d, J=7 Hz), 7.94 81H, br).

Reference Example 4

Using 3 g of 1-(2-aminoethyl)-4-methoxymethoxypiperidine and 2 g of cyclooctanone, 4.3 g of 1-(2-cyclooctylaminoethyl)-4-methoxymethoxypiperidine was obtained in the same manner as in Reference Example 1.

Light yellow oil

¹ H-NMR (CDCl₃) δ; 1.3-2.0 (18H, m), 2.05-2.2 (2H, m), 2.44 (2H, t, J=6.1 Hz), 2.55-2.85 (5H, m), 3.37(3H, s), 3.5-3.65 (1H, m), 4.68 (2H, s).

Reference Example 5

0.49 ml of 3-chloropropanesulfonyl chloride was dropwise added, at 0° C., to a solution of 1.19 g of 1-(2-cyclooctylaminoethyl)-4-methoxymethoxypiperidine and 0.67 ml of triethylamine in 10 ml of dichloromethane. The mixture was stirred at room temperature for 1 day. The reaction mixture was washed with water and dried with magnesium sulfate. The solvent was removed by distillation. The resulting residue was purified by silica gel column chromatography (eluant: 2% methanol/dichloromethane) to obtain 1.2 g of 1-{2-[N-(3-chloropropylsulfonyl)-N-cyclooctylamino]-ethyl}-4-methoxymethoxypiperidine.

Light yellow oil

¹ H-NMR (CDCl₃) δ; 1.35-2.05 (18H, m), 2.15-2.35 (4H, m), 2.57 (2H, t), 2.7-2.9 (2H, m), 3.16 (2H, t, J=7.6 Hz), 3.27 (2H, t, J=7.0 Hz), 3.37(3H, s), 3.55-3.7 (1H, m), 3.69 (2H, t, J=6 Hz), 3.75-3.9 (1H, m), 4.68 (2H, s).

Reference Example 6

A solution of 53.3 g of 6-(4-chlorobutoxy)carbostyril and 32 g of sodium sulfite dissolved in 500 ml of water and 200 ml of ethanol was refluxed for 1 day. The solution was allowed to cool and stand for 3 days and then filtered. The filtrate was made acidic with diluted hydrochloric acid. The solvent was removed by distillation. To the resulting residue was-added water, and the precipitate was collected by filtration to obtain 47.5 g of 6-(4-hydroxysulfonylbutoxy)carbostyril as a white powder.

Reference Example 7

300 g of phosphorus oxychloride was added to 47.5 g of 6-(4-hydroxysulfonylbutoxy)carbostyril. The mixture was refluxed for 5 hours. The phosphorus oxychloride was removed by distillation under reduced pressure. The resulting residue was diluted with chloroform. Thereto was added ice, and the organic layer was separated and dried with magnesium sulfate. The solvent was removed by distillation. The residue was crystallized from n-hexane to obtain 48.17 g of 4-(2-chloro-6-quinolyloxy)butylsulfonyl chloride.

White powder

Reference Example 8

1.75 g of 4-(2-chloro-6-quinolyloxy)butylsulfonyl chloride was added, at 0° C., to a solution of 1.6 g of 1-[2-(2-chlorobenzylamino)ethyl]-4-methoxymethoxypiperidine and 1 ml of triethylamine in 25 ml dichloromethane. The mixture was stirred at room temperature for 1 day. The reaction mixture was washed with water and dried with magnesium sulfate. The solvent was removed by distillation. The resulting residue was purified by a silica gel column chromatography (eluant: 3% methanol/dichloromethane) to obtain 2.63 g of 2-chloro-6-[4-{N-(2-chlorobenzyl)-N-[2-(4-methoxymethoxy-1-piperidinyl)ethyl]aminosulfonyl}butoxy]quinoline.

Light yellow oil

¹ H-NMR (CDCl.sub. 3) δ; 7.80-8.05 (2H, m), 7.58 (1H, d, J=7.4 Hz), 7.15-7.45 (5H, m), 7.07 (1H, d, J=2.6 Hz), 4.65 (2H, s), 4.60 (2H, s), 4.12 (2H, t, J=5.8 Hz), 3.45-3.60 (1H, m), 3.10-3.45 (7H, m), 2.60-2.80 (2H, m), 2.44 (2H, t, J=6.2 Hz), 1.92-2.22 (6H, m), 1.75-1.92 (2H, m), 1.45-1.75 (2H, m).

Reference Example 9

A suspension of 30 g of 6-(4-chlorobutoxy)carbostyril, 103 ml of benzylamine and 33 g of sodium iodide in 300 ml of dimethylformamide was stirred at 80° C. for 8 hours. The reaction mixture was allowed to cool and then poured into water. The resulting precipitate was collected by filtration. The precipitate was washed with water and diethyl ether in this order to obtain 29.1 g of 6-(4-benzylaminobutoxy)carbostyril.

Light yellow powder

Reference Example 10

1.28 g of 6-(3-aminopropoxy)carbostyril hydrochloride was added, at 0° C., to 10 ml of an aqueous solution containing 0.3 g of carbon disulfide and 0.4 g of sodium hydroxide. The mixture was stirred at 80° C. for about 2 hours. Thereto was added 0.55 g of ethyl chlorocarbonate at 35° C. The resulting mixture was stirred for 30 minutes. The reaction mixture was poured into water, followed by extraction with ethyl acetate. The filtrate was dried with magnesium sulfate. The solvent was removed by distillation. To the resulting residue was added diethyl ether, and the resulting crystals were collected by filtration and purified by a silica gel column chromatography (eluant: 3.3% methanol/dichloromethane) to obtain 0.22 g of 6-(3-isothiocyanatopropoxy)carbostyril.

Reference Example 11

A solution of 3.13 g of 1-[2-(cyclooctylmethylamino)ethyl]-4-methoxymethoxypiperidine and 1.0 ml of 3-chloropropaneisocyanate in 20 ml of dichloromethane was stirred at room temperature for 3 hours. The solvent was removed by distillation under reduced pressure to obtain 4.2 g of N-cyclooctylmethyl-N-[2-(4-methoxymethoxy-1-piperidinyl)ethyl]-N'-(3-chloropropyl)urea.

¹ H-NMR (CDCl.sub. 3) δ; 1.15-1.8 (15H, m), 1.85-2.2 (6H, m), 2.25-2.4 (2H, m), 2.51 (2H, t, J=5 Hz), 2.75-2.85 (2H, m), 3.10 (2H, d, J=7.5 Hz), 3.25-3.3 (4H, m), 3.37 (3H, s), 3.55-3.7 (3H, m), 4.68 (2H, s).

Using appropriate starting materials, the compounds shown in the following Tables 1-14 were obtained in the same manner as in

Reference Examples 1, 2 and 5.

                  TABLE 1                                                          ______________________________________                                         Reference Example 12                                                            ##STR52##                                                                     .sup.1 H-NMR(CDCL.sub.3) δ;                                              0.8-2.0(15H, m), 2.13(2H, m), 2.44(4H, m), 2.66(2H, t, J=6Hz),                 2.75(2H, m), 3.37(3H, s), 3.57(1H, m), 4.68(2H, s)                             Reference Example 13                                                            ##STR53##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.28(3H, t, J=7.2Hz), 1.4-1.9(15H, m), 2.42(2H, d, J=6.5Hz),                   3.39(2H, s), 4.19(2H, q, J=7.2Hz)                                              Reference Example 14                                                            ##STR54##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.2-2.0(12H, m), 2.1(2H, m), 2.47(2H, t, J=6.2Hz), 2.6-2.8(2H, m),             2.70(2H, t, J=6.2Hz), 3.37(3H, s), 3.42(2H, m), 3.57(1H, m),                   3.96(1H, m), 4.68(2H, s)                                                       ______________________________________                                    

                  TABLE 2                                                          ______________________________________                                         Reference Example 15                                                            ##STR55##                                                                     .sup.1 H-NMR(CDCL.sub.3) δ;                                              1.2-2.0(21H, m), 2.1(2H, m), 2.3-2.7(6H, m), 2.8(2H, m),                       3.38(3H, s), 3.6(1H, m), 4.70(2H, s)                                           Reference Example 16                                                            ##STR56##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.6(2H, m), 1.9(2H, m), 2.1(2H, m), 2.48(2H, t, J=6Hz),                        2.67(2H, t, J=6Hz), 2.7(2H, m), 3.37(3H, s), 3.6(1H, m),                       3.86(2H, s), 4.68(2H, s), 7.43(2H, d, J=8Hz), 7.61(2H, d, J=8Hz)               Reference Example 17                                                            ##STR57##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.6(2H, m), 1.8(2H, m), 2.1(2H, m), 2.33(3H, s),                               2.47(2H, t, J= 6Hz), 2.68(2H, t, J=6Hz), 2.7(2H, m), 3.37(3H, s),              3.6(1H, m), 3.76(2H, s), 4.68(2H, s), 7.12(2H, d, J=8Hz),                      7.20(2H, d, J=8Hz)                                                             ______________________________________                                    

                  TABLE 3                                                          ______________________________________                                         Reference Example 18                                                            ##STR58##                                                                     .sup.1 H-NMR(CDCl.sub.3) δ;                                              1.6(2H, m), 1.9(2H, m), 2.12(2H, m), 2.47(2H, t, J=6Hz),                       2.65(2H, t, J=6Hz), 2.7(2H, m), 3.37(3H, s), 3.6(1H, m),                       3.76(2H, s), 4.68(2H, s), 7.15(1H, dd, J=2Hz, 8Hz),                            7.38(1H, d, J=8Hz), 7.43(1H, d, J=2Hz)                                         Reference Example 19                                                            ##STR59##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.07(3H, t, J=7.2Hz), 1.2-1.7(17H, m), 1.9(2H, m), 2.3(2H, m),                 2.40(2H, d, J=6.8Hz), 2.53(1H, dd, J=6.5Hz, 11.5Hz),                           2.7-2.9(3H, m), 3.36(3H, s), 3.43(1H, dd, J=6.2Hz, 9.8Hz),                     4.2(1H, m), 4.62(1H, d, J=6.8Hz), 4.65(1H, d, J=6.8Hz)                         ______________________________________                                    

                  TABLE 4                                                          ______________________________________                                         Reference Example 20                                                            ##STR60##                                                                     .sup.1 H-NMR(CDCL.sub.3) δ;                                              1.6(2H, m), 1.8(2H, m), 2.1(2H, m), 2.45(2H, t, J=6Hz),                        2.68(2H, t, J=6Hz), 2.7(2H, m), 3.37(3H, s), 3.5(1H, m),                       3.75(2H, s), 3.87(3H, s), 3.89(3H, s), 4.68(2H, s), 6.8(3H, m)                 Reference Example 21                                                            ##STR61##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.6(2H, m), 1.8(2H, m), 2.1(2H, m), 2.48(2H, t, J=6Hz),                        2.69(2H, t, J=6Hz), 2.7(2H, m), 3.37(3H, s), 3.6(1H, m),                       3.89(2H, s), 4.67(1H, s), 7.18-7.24(2H, m), 7.34-7.40(2H, m)                   Reference Example 22                                                            ##STR62##                                                                     .sup.1 H-NMR (CDCl.sub. 3) δ;                                            0.80-1.00(2H, m), 1.10-1.90(13H, m), 2.30-2.95(8H, m),                         3.10-3.20(1H, m), 3.30-3.40(1H, m), 3.50-3.80(1H, m)                           ______________________________________                                    

                  TABLE 5                                                          ______________________________________                                         Reference Example 23                                                            ##STR63##                                                                     .sup.1 H-NMR(CDCL.sub.3) δ;                                              1.60-1.95(5H, m), 2.25-3.20(7H, m), 3.35-3.90(4H, m),                          7.20-7.40(5H, m)                                                               Reference Example 24                                                            ##STR64##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.50-2.00(4H, m), 2.25-2.40(1H, m), 2.55-2.70(2H, m),                          3.00-3.65(6H, m), 6.55-6.75(3H, m), 7.10-7.30(2H, m)                           Reference Example 25                                                            ##STR65##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.20-2.00(19H, m), 2.15-2.75(7H, m), 2.90-3.20(2H, m),                         3.96(3H, s), 3.40-3.60(2H, m), 4.63(2H, s)                                     ______________________________________                                    

                  TABLE 6                                                          ______________________________________                                         Reference Example 26                                                            ##STR66##                                                                     .sup.1 H-NMR(CDCL.sub.3) δ;                                              1.80-2.65(7H, m), 2.85-3.00(1H, m), 3.25-3.95(9H, m),                          4.40-4.70(2H, m), 7.20-7.45(5H, m)                                             Reference Example 27                                                            ##STR67##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.70-2.15(4H, m), 2.25-2.40(1H, m), 2.60-2.80(4H, m), 2.94(3H, s),             3.04(3H, s), 3.16(1H, brt, J=6.5Hz), 3.36(1H, dd, J=9Hz, 6.5Hz),               3.48(2H, s), 3.75-3.90(2H, m), 7.20-7.40(5H, m)                                Reference Example 28                                                            ##STR68##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.75-2.00(2H, m), 2.20-2.80(7H, m), 2.85-3.15(2H, m),                          3.25-3.50(2H, m), 3.60-3.80(3H, m), 4.35-4.40(1H, m),                          7.20-7.40(5H, m)                                                               ______________________________________                                    

                  TABLE 7                                                          ______________________________________                                         Reference Example 29                                                            ##STR69##                                                                     .sup.1 H-NMR(CDCL.sub.3) δ;                                              1.20-1.90(15H, m), 2.30-2.70(7H, m), 2.80-2.95(2H, m), 3.37(6H, s),            3.70-3.85(2H, m), 4.13(2H, brs), 4.65(2H, d, J=6.5Hz),                         4.71(2H, d, J=6.5Hz)                                                           Reference Example 30                                                            ##STR70##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             2.97(2H, t, J=6Hz), 3.77(2H, s), 4.05(2H, t, J=6Hz), 6.95(1H, s),              7.07(1H, s), 7.20-7.45(5H, m), 7.51(1H, s)                                     Reference Example 31                                                            ##STR71##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.00-1.70(15H, m), 2.34(2H, d, J=6.5Hz), 2.87(2H, t, J=6Hz),                   3.98(2H, t, J=6Hz), 6.89(1H, s), 7.00(1H, s), 7.45(1H, s)                      ______________________________________                                    

                  TABLE 8                                                          ______________________________________                                         Reference Example 32                                                            ##STR72##                                                                     .sup.1 H-NMR(CDCL.sub.3) δ;                                              3.85(2H, s), 3.93(2H, s), 7.10-7.40(7H, m),                                    7.64(1H, dt, J=7.5Hz, 2Hz), 8.56(2H, brd, J=5Hz)                               Reference Example 33                                                            ##STR73##                                                                     .sup.1 H-NMR(CDCl.sub.3) δ;                                              1.20-1.80(21H, m), 1.46(9H, s), 2.43(2H, d, J=6.5Hz),                          2.76(2H, t, J=6.5Hz), 3.30-3.60(6H, m), 3.75-3.90(2H, m),                      4.59(1H, brs)                                                                  Reference Example 34                                                            ##STR74##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.44(2H, brs), 1.76(6H, brs), 3.00-3.20(2H, m), 3.35(2H, s),                   3.45-3.60(1H, m), 3.75(2H, s), 3.80-3.95(1H, m), 3.95-4.10(1H, m),             7.15-7.35(5H, m)                                                               ______________________________________                                    

                  TABLE 9                                                          ______________________________________                                         Reference Example 35                                                            ##STR75##                                                                     .sup.1 H-NMR(CDCL.sub.3) δ;                                              1.15-1.80(15H, m), 1.80-2.00(2H, m), 2.10(2H, brs),                            2.43(2H, d, J=6.5Hz), 3.20-3.35(2H, m), 3.38(3H, s), 3.43(2H, s),              3.60-3.70(1H, m), 3.75-3.90(1H, m), 3.90-4.05(1H, m), 4.70(2H, s)              Reference Example 36                                                            ##STR76##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.20-1.80(21H, m), 2.30-2.45(9H, m), 2.68(2H, t, J=6Hz)                        Reference Example 37                                                            ##STR77##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.14(6H, d, J=6.5Hz), 1.20-1.80(21H, m), 2.40-2.55(4H, m),                     2.60-2.80(4H, m)                                                               ______________________________________                                    

                  TABLE 10                                                         ______________________________________                                         Reference Example 38                                                            ##STR78##                                                                     .sup.1 H-NMR(CDCL.sub.3) δ;                                              1.20-1.70(14H, m), 2.40-2.85(12H, m), 3.70(4H, t, J=6Hz)                       Reference Example 39                                                            ##STR79##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.20-1.80(19H, m), 2.40-2.60(9H, m), 2.68(2H, t, J=6Hz),                       3.95(4H, s)                                                                    Reference Example 40                                                            ##STR80##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.20-2.20(22H, m), 2.27(6H, s), 2.35-2.50(4H, m),                              2.67(2H, t, J=6Hz), 2.93(2H, brd, J=12Hz)                                      ______________________________________                                    

                  TABLE 11                                                         ______________________________________                                         Reference Example 41                                                            ##STR81##                                                                     .sup.1 H-NMR(CDCL.sub.3) δ;                                              1.20-1.80(15H, m), 2.35-2.70(16H, m), 3.36(3H, s),                             3.66(2H, t, J=6Hz), 4.64(2H, s)                                                Reference Example 42                                                            ##STR82##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.50-2.00(5H, m), 2.40-2.65(11H, m), 2.70(2H, t, J=6Hz),                       3.60(2H, t, J=6Hz), 7.20-7.40(5H, m)                                           Reference Example 43                                                            ##STR83##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.40-2.00(10H, m), 2.17(2H, brt, J=9Hz), 2.62(2H, t, J=6Hz),                   2.70-2.90(2H, m), 3.15(2H, t, J=6Hz), 3.65-3.80(2H, m),                        4.30(1H, brs), 6.60-6.75(3H, m), 7.15-7.30(2H, m)                              ______________________________________                                    

                  TABLE 12                                                         ______________________________________                                         Reference Example 44                                                            ##STR84##                                                                     .sup.1 H-NMR(CDCl.sub.3 + D.sub.2 O) δ;                                  2.60-2.80(8H, m), 3.58(4H, t, J=5Hz), 3.77(2H, s),                             7.20-7.50(5H, m)                                                               Reference Example 45                                                            ##STR85##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.0-2.0(14H, m), 2.05-2.2(2H, m), 2.3-2.5(3H, m), 2.6-2.8(4H, m),              3.70(3H, s), 3.5-3.65(1H, m), 4.68(2H, s)                                      Reference Example 46                                                            ##STR86##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             0.8-2.0(15H, m), 2.25(1H, dd), 2.4-2.55(2H, m), 2.55-2.95(4H, m),              3.0-3.15(2H, m), 3.37(3H, s), 3.40-3.55(2H, m), 4.64(2H,                       ______________________________________                                         s)                                                                        

                  TABLE 13                                                         ______________________________________                                         Reference Example 47                                                            ##STR87##                                                                     .sup.1 H-NMR(CDCl.sub.3) δ;                                              2.25-2.4(2H, m), 2.84(2H, t, J=6.3Hz), 3.10-3.30(6H, m),                       3.82(2H, s), 7.20-7.45(5H, m)                                                  Reference Example 48                                                            ##STR88##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.6-1.75(2H, m), 1.9-2.05(2H, m), 2.15-2.35(2H, m),                            2.49(2H, t, J=9.3Hz), 2.7-2.8(4H, m), 3.37(3H, s),                             3.6-3.75(1H, m), 3.96(2H, s), 4.68(2H, s), 6.97(2H, s)                         Reference Example 49                                                            ##STR89##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.5-1.75(2H, m), 1.8-2.0(2H, m), 2.05-2.2(2H, m),                              2.4-2.85(6H, m), 3.37(3H, s), 3.5-3.65(1H, m), 3.93(2H, s),                    4.68(2H, s), 7.15(1H, dt, J=5Hz, 2Hz), 7.25(1H, dd),                           7.64(1H, dt, J=5Hz, 2Hz), 8.55(1H, dd)                                         ______________________________________                                    

                  TABLE 14                                                         ______________________________________                                         Reference Example 50                                                            ##STR90##                                                                     .sup.1 H-NMR(CDCl.sub.3) δ;                                              1.55-1.7(2H, m), 1.8-1.95(2H, m), 2.05-2.15(2H, m),                            2.47(2H, t, J=6Hz), 2.65-2.8(4H, m), 3.36(3H, s),                              3.5-3.65(1H, m), 4.0(2H, s), 4.67(2H, s), 6.85-7.0(2H, m),                     7.2(1H, dd, J=1.5Hz, 5Hz)                                                      ______________________________________                                    

Using appropriate starting materials, a compound shown in the following Table 15 were obtained in the same manner as in Reference Example 3.

                  TABLE 15                                                         ______________________________________                                         Reference Example 51                                                            ##STR91##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.5-1.7(6H, m), 1.87(1H, m), 2.16(1H, ddd, J=1.9Hz,                            7.5Hz, 13.2Hz), 2.93(1H, dd, J=3.5Hz, 11.9Hz), 3.39(3H, s),                    3.3-3.5(3H, m), 3.6(2H, m), 4.09(1H, t, J=8Hz), 4.3(1H, m),                    4.65(2H, s)                                                                    ______________________________________                                    

Using appropriate starting materials, the compounds shown in the following Tables 16-22 were obtained in the same manner as in Reference Example 5.

                  TABLE 16                                                         ______________________________________                                         Reference Example 52                                                            ##STR92##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             0.85-1.05(2H, m), 1.1-1.3(3H, m), 1.35(3H, s), 1.45(3H, s),                    1.65-1.85(6H, m), 2.25-2.35(2H, m), 3.05-3.4(6H, m),                           3.6-3.75(3H, m), 4.05-4.15(1H, m), 4.25-4.4(1H, m)                             Reference Example 53                                                            ##STR93##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.55-1.75(2H, m), 1.8-1.95(2H, m), 2.15-2.25(2H, m), 2.31(2H, dd),             2.45(2H, d, J=6.7Hz), 2.65-2.85(2H, m), 3.28(2H, t, J=7.75Hz),                 3.36(3H, s), 3.5-3.65(1H, m), 3.66(2H, t, J=6.3Hz),                            3.81(2H, t, J=6.7Hz), 4.66(2H, s), 7.3-7.5(5H, m)                              ______________________________________                                    

                  TABLE 17                                                         ______________________________________                                         Reference Example 54                                                            ##STR94##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.0-2.0(14H, m), 2.15-2.35(4H, m), 2.52(2H, t, J=7.1Hz),                       2.25-2.37(2H, m), 3.19(2H, t, J=7.6Hz), 3.30(2H, t, J=7.7Hz),                  3.37(3H, s), 3.45-3.65(2H, m), 3.48(2H, t, J=6.5Hz), 4.68(2H, s)               Reference Example 55                                                            ##STR95##                                                                     .sup.1 H-NMR (CDCl.sub.3) δ;                                             1.45-1.7(2H, m), 1.82-1.95(2H, m), 2.05-2.2(2H, m),                            2.30-2.35(2H, m), 2.41(2H, t, J=6.5z), 2.67-2.8(2H, m),                        3.25-3.37(4H, m), 3.37(3H, s), 3.5-3.65(1H, m),                                3.69(2H, t, J=6.2Hz), 4.46(2H, s), 4.67(2H, s), 7.30-7.42(5H,                  ______________________________________                                         m)                                                                        

                  TABLE 18                                                         ______________________________________                                         Reference Example 56                                                            ##STR96##                                                                     .sup.1 H-NMR(CDCl.sub.3) δ;                                              1.04(6H, t, J=7.2Hz), 1.37-2.10(12H, m), 2.23-2.35                             (2H, m), 2.5-2.72(6H, m), 3.1-3.3(4H, m),                                      3.6-3.75(3H, m)                                                                Reference Example 57                                                            ##STR97##                                                                     .sup.1 H-NMR(CDCl.sub.3) δ;                                              1.2-2.1(19H, m), 2.3-2.45(2H, m), 3.16(2H, d,                                  J=7.6Hz), 3.25-3.45(7H, m), 3.55-3.65(1H, m),                                  3.7(2H, t), 3.8-4.0(2H, m), 4.16(2H, s),                                       4.70(2H, s)                                                                    Reference Example 58                                                            ##STR98##                                                                     .sup.1 H-NMR(CDCl.sub.3) δ;                                              1.18-1.87(18H, m), 2.27-2.42(2H, m), 3.10(2H, d,                               J=7.6Hz), 3.29(2H, t, J=7.6Hz), 3.68(2H, t,                                    J=6.3Hz), 4.09(2H, s), 4.22(2H, q, J=7.1Hz)                                    ______________________________________                                    

                  TABLE 19                                                         ______________________________________                                         Reference Example 59                                                            ##STR99##                                                                     .sup.1 H-NMR(CDCl.sub.3) δ;                                              1.15-1.7(8H, m), 1.8-1.95(2H, m), 2.15-2.35(4H, m),                            2.5-2.65(2H, m), 2.75-2.85(2H, m), 3.2-3.6(12H, m),                            3.67(2H, t, J=6.3Hz), 3.9-4.05(1H, m), 4.68(2H, s)                             Reference Example 60                                                            ##STR100##                                                                    .sup.1 H-NMR(CDCl.sub.3) δ;                                              0.85-2.0(15H, m), 2.15-2.4(4H, m), 2.51(2H, t,                                 J=6.7Hz), 2.73-2.87(2H, m), 3.0(2H, d, J=7.4Hz),                               3.24(2H, t, J=7.7Hz), 3.3-3.45(5H, m),                                         3.55-3.65(1H, m), 3.68(2H, t, J=6.2Hz),                                        4.68(2H, s)                                                                    ______________________________________                                    

                  TABLE 20                                                         ______________________________________                                         Reference Example 61                                                            ##STR101##                                                                    .sup.1 H-NMR(CDCl.sub.3) δ;                                              1.15-1.9(31H, m), 1.95-2.1(2H, m), 2.25-2.35(8H, m),                           2.51(2H, t, J=6.8Hz), 2.9-3.05(3H, m),                                         3.22(2H, t, J=7.6Hz), 3.34(2H, t, J=6.7Hz),                                    3.69(2H, t, J=6.2Hz)                                                           Reference Example 62                                                            ##STR102##                                                                    .sup.1 H-NMR(CDCl.sub.3) δ;                                              1.18-1.95(15H, m), 2.2-2.37(2H, m), 2.4-2.7(12H, m),                           3.01(2H, d, J=7.8Hz), 3.25(2H, t, J=7.6Hz),                                    3.3-3.45(5H, m), 3.6-3.75(4H, m), 4.64(2H, s)                                  ______________________________________                                    

                  TABLE 21                                                         ______________________________________                                         Reference Example 63                                                            ##STR103##                                                                    .sup.1 H-NMR(CDCl.sub.3) δ;                                              1.15-1.9(15H, m), 2.2-2.4(2H, m), 2.4-2.6(6H, m),                              3.02(2H, d, J=7.6Hz), 3.26(2H, t, J=7.7Hz),                                    3.36(2H, t, J=6.6Hz), 3.6-3.8(6H, m)                                           Reference Example 64                                                            ##STR104##                                                                    .sup.1 H-NMR(CDCl.sub.3) δ;                                              1.15-2.15(21H, m), 2.20-2.65(8H, m), 3.01(2H, d,                               J=7.6Hz), 3.26(2H, t, J=7.6Hz), 3.35(2H, t, J=6.7Hz),                          3.68(2H, t, J=6.2Hz)                                                           Reference Example 65                                                            ##STR105##                                                                    .sup.1 H-NMR(CDCl.sub.3) δ;                                              1.15-2.0(19H, m), 2.1-2.5(4H, m), 2.6-2.75(1H, m),                             2.9-3.57(13H, m), 3.68(2H, t, J=3.8Hz),                                        4.63(2H, s)                                                                    ______________________________________                                    

                  TABLE 22                                                         ______________________________________                                         Reference Example 66                                                            ##STR106##                                                                    .sup.1 H-NMR(CDCl.sub.3) δ;                                              1.15-1.8(15H, m), 2.2-2.35(2H, m), 2.5-2.8(4H, m),                             2.85-3.05(4H, m), 3.25-3.4(10H, m), 3.68(2H, t,                                J=6.3Hz), 4.12(2H, t, J=4.2Hz), 4.6-4.75(4H, m)                                Reference Example 67                                                            ##STR107##                                                                    .sup.1 H-NMR(CDCl.sub.3) δ;                                              1.15-1.85(19H, m), 2.25-2.35(2H, m), 2.5-2.65(6H, m),                          3.02(2H, d, J=7.6Hz), 3.24(2H, t, J=7.6Hz),                                    3.35(2H, t, J=6.6Hz), 3.68(2H, t, J=6.2Hz),                                    3.95(4H, s)                                                                    ______________________________________                                    

Example 1

A suspension of 800 mg of 6-(4-bromobutoxy)carbostyril, 700 mg of 1-(2-benzylaminoethyl)-4-methoxymethoxypiperidine and 330 mg of sodium hydrogencarbonate in 20 ml of dimethylformamide was stirred at 100° C. for 6 hours. The reaction mixture was allowed to cool and mixed with water. The resulting mixture was subjected to decantation to obtain an oily substance. The substance was dissolved in chloroform, and the solution was washed with water and dried with magnesium sulfate. The solvent was removed by distillation to obtain 1.07 g of 6-[4-{N-[2-(4-methoxymethoxy-1-piperidinyl)ethyl]-N-dibenzylamino}butoxy]carbostyril.

¹ H-NMR (CDCl.sub. 3) δ; 1.5-1.9 (8H, m), 2.12 (2H, m), 2.5 (4H, m), 2.6 (2H, m), 2.7 (2H, m), 3.36 (3H, s), 3.6 (1H, m), 3.60 (2H, s), 3.95 (2H, t, J=6 Hz), 4.67 (2H, s), 6.71 (1H, d, J=9.5 Hz), 6.93 (1H, d, J=2.5 Hz), 7.12 (1H, dd, J=2.5 Hz, 9 Hz), 7.2-7.3 (6H, m).

Example 2

10 ml of 10% hydrochloric acid was added to a solution of 1.07 g of 6-[4-{N-[2-(4-methoxymethoxy-1-piperidinyl)ethyl]-N-benzylamino}butoxy]carbostyril in 10 ml of methanol. The mixture was stirred at room temperature for 1 day. The reaction mixture was washed with chloroform and then made alkaline with a 10% aqueous potassium hydroxide solution, followed by extraction with chloroform. The extract was washed with water and dried with magnesium sulfate. The solvent was removed by distillation. The resulting residue was purified by silica gel column chromatography (eluant: 5% methanol/chloroform), followed by recrystallization from ethyl acetate-diethyl ether, to obtain 330 mg of 6-[4-{N-[2-(4-hydroxy-1-piperidinyl)ethyl]-N-benzylamino}butoxy]carbostyril.

White powder

Melting point: 126°-131° C.

Example 3

5 ml of a 1N aqueous sodium hydroxide solution and 5 ml of methanol were added to 795 mg of 6-[4-(N-ethoxycarbonylmethyl-N-cyclooctyl-methyl)butoxy]carbostyril. The mixture was stirred at 50° C. for 2 hours. The reaction mixture was neutralized with a 10% aqueous hydrochloric acid solution. The resulting precipitate was collected by filtration to obtain 691 mg of 6-[4-(N-carboxymethyl-N-cycloctylmethyl)butoxy]carbostyril.

White powder

Melting point: 154°-155° C.

Example 4

A suspension of 0.44 g of 6-hydroxycabostyril, 0.45 g of potassium carbonate and 1.2 g of 1-{2-[N-(3-chloropropylsulfonyl)-N-cyclooctylamino]ethyl}- 4-methoxymethoxypiperidine in 30 ml of dimethylformamide was stirred at 90° C. for 1 day. The reaction mixture was poured into water, followed by extraction with ethyl acetate. The extract was washed with water and dried with magnesium sulfate. The solvent was removed by distillation. The resulting residue was purified by silica gel column chromatography (eluant: 5% methanol/dichloromethane) to obtain 0.76 g of 6-[3-{N-[2-(4-methoxymethoxy-1-piperidinyl)ethyl-N-cyclooctylaminosulfonyl}propoxy]carbostyril.

Light yellow oil

¹ H-NMR (CDCl₃) δ; 7.75 (1H, d, J=9.5 Hz), 7.35 (1H, d, J=9 Hz), 7.15 (1H, dd, J=9 Hz, 2.6 Hz), 7.01 (1H, d, J=2.6 Hz), 6.73 (1H, d, J=9.5 Hz), 4.68 (2H, s), 4.15 (2H, t, J=5.8 Hz), 3.75-3.95 (H, m), 3.58-3.69 (1H, m), 3.37(3H, s), 3.22-3.35 (4H, m), 2.75-2.90 (2H, m), 2.55-2.68 (2H, m), 2.18-2.40 (4H, m), 1.40-2.05 (18H, m).

Example 5

A solution of 2.63 g of 2-chloro-6-[4-{N-(2-chlorobenzyl)-N-[2-(4-methoxymethoxy-1-piperidinyl)ethyl]aminosulfonyl}butoxy]quinoline dissolved in 50 ml of acetic acid was refluxed for 3.5 hours. The solvent was removed by distillation under reduced pressure to obtain crude 6-[4-{N-(2-chlorobenzyl)-N-[2-(4-methoxymethoxy-1-piperidinyl)ethyl]aminosulfonyl}butoxy]carbostyril. To the substance were added 10 ml of methanol and 10 ml of a 5% aqueous hydrochloric acid solution. The mixture was stirred at room temperature for 1 day and then made alkaline with an aqueous potassium hydroxide solution, followed by extraction with ethyl acetate. The extract was washed with water and dried with magnesium sulfate. The solvent was removed by distillation. The resulting residue was purified by silica gel column chromatography (eluant: 10% methanol/dichloromethane) to obtain 1.4 g of 6-[4-{N-(2-chlorobenzyl)-N-[2-(4-hydroxy-1-piperidinyl)ethyl]aminosulfonyl}butoxy]carbostyril.

White powder

Melting point: 147°-152° C.

Example 6

6.6 ml of 3-chloropropanesulfonyl chloride was dropwise added, at 0° C., to a dichloromethane solution containing 8 g of 6-(4-benzylaminobutoxy)carbostyril and 7.6 ml of triethylamine. The mixture was stirred at room temperature for 1 day. The reaction mixture was washed with 10% hydrochloric acid and water in this order and dried with magnesium sulfate. The solvent was removed by distillation. The resulting residue was dissolved in 30 ml of dioxane. To the solution was added 10 ml of a 10% potassium hydroxide solution, followed by stirring at room temperature for 30 minutes. The reaction mixture was neutralized with 10% hydrochloric acid, followed by extraction with chloroform. The extract was dried with magnesium sulfate. The solvent was removed by distillation. The resulting residue was crystallized from diethyl ether to obtain 7.3 g of 6-{4-[N-(3-chloropropylsulfonyl)-N-benzylamino]butoxy}carbostyril.

White powder

¹ H-NMR (CDCl₃) δ; 1.6-1.7 (4H, m), 2.25-2.35 (2H, m), 3.11 (2H, t, J=7.5 Hz), 3.25-3.35 (2H, m), 3.67 (2H, t, J=6.0 Hz), 3.9-4.0 (2H, m), 4.44 (2H, s), 6.71 (2H, d, J=9.5 Hz), 6.92 (1H, d, J=2.5 Hz), 7.09 (2H, dd, J=2.5 Hz, 9.0 Hz), 7.3-7.4 (6H, m), 7.73 (1H, d, J=9.5 Hz).

Example 7

1.0 g of 6-{4-[N-(3-chloropropylsulfonyl)-N-benzylamino]butoxy}carbostyril and 600 mg of 1,2,4-triazole were stirred at 140° C. for 3 hours. The reaction mixture was diluted with dioxane. The resulting crystals were collected by filtration and purified by a column chromatography (eluant: 3% methanol/chloroform). The purified crystals were recrystallized from ethyl acetate to obtain 327 mg of 6-[4-{N-[3-(1,2,4-triazol-1-yl)propylsulfonyl]-N-benzylamino}butoxy]-carbostyril.

Light yellow powder

Melting point: 137°-139° C.

Example 8

A solution of 6.7 g of 6-(4-chlorobutyl)carbostyril, 5 g of 1-(2-aminoethyl)-4-methoxymethoxypiperidine, 4.0 g of sodium iodide and 2.3 g of sodium hydrogencarbonate in 30 ml of dimethylformamide was stirred at 80° C. for 4 hours. The reaction mixture was diluted with chloroform. The dilution was washed with water and subjected to extraction with 5% hydrochloric acid. The extract was made alkaline with 10% potassium hydroxide, followed by extraction with chloroform. The extract was dried with magnesium sulfate. The solvent was removed by distillation to obtain 9.01 g of 6-{4-[2-(4-methoxymethoxy-1-piperidinyl)ethyl]aminobutoxy}carbostyril.

Light yellow oil

¹ H-NMR (CDCl₃) δ; 1.5-1.7 (2H, m), 1.75-1.9 (4H, m), 2.15-2.3 (2H, m), 2.6-2.7 (2H, m), 2.7-2.8 (2H, m), 2.85-2.95 (4H, m), 3.45 (3H, s), 3.5-3.65 (1H, m), 3.95-4.05 (2H, m), 4.65 (2H, s), 6.64 (1H, d, J=9.5 Hz), 6.91 (1H, d, J=2.5 Hz), 7.05 (1H, dd, J=2.5 Hz, 9.0 Hz), 7.39 81H, d, J=9.0 Hz), 7.70 (1H, d, J=9.5 Hz), 8.00 (1H, br).

Example 9

A solution of 2.5 g of 6-{4-[2-(4-methoxymethoxy-1-piperidinyl)ethyl]aminobutoxy}carbostyril, 1.5 g of cyclohexylmethanesulfonyl chloride and 1.35 ml of triethylamine in 30 ml of dichloromethane was stirred at room temperature for 16 hours. The reaction mixture was washed with water and dried with magnesium sulfate. The solvent was removed by distillation. The resulting residue was purified by a silica gel column chromatography (eluant: 3% methanol/chloroform)-to obtain 620 mg of 6-[4-{N-[2-(4-methoxymethoxy-1-piperidinyl)ethyl]-N-cyclohexylmethylsulfonylamino}butoxy]carbostyril.

Light yellow oil

¹ H-NMR (CDCl₃) δ; 1.0-2.0 (19H, m), 2.2-2.3 (2H, m), 2.4-2.6 (2H, m), 2.7-2.9 (2H, m), 3.2-3.4 (4H, m), 3.36 (3H, s), 3.5-3.65 (1H, m), 3.95-4.05 (2H, m), 4.67 (2H, s), 6.71 (1H, d, J=9.5), 7.13 (1H, dd, J=2.5H, 9.0 Hz), 7.34 (1H, d, J=9.0 Hz), 7.75 (1H, d, J=9.5 Hz).

Example 10

A solution of 0.22 g of 6-(3-isothiocyanatopropoxy)carbostyril and 0.3 g of 1-[2-(cyclooctylmethylamino)ethyl]-4-methoxymethoxypiperidine in 30 ml of chloroform was stirred at room temperature for 5 hours. The solvent was removed by distillation under reduced pressure. The resulting residue was purified by a silica gel column chromatography (eluant: 3% methanol/dichloromethane) to obtain 0.36 g of 6-[3-{N-2-(4-methoxymethoxy-1-piperidinyl)ethyl-N-cyclooctylmethylamino}-thiocarbonylaminopropoxy]carbostyril.

Colorless oil

Example 11

A solution of 1.6 g of 6-hydroxycarbostyril, 1.4 g of potasium carbonate and 4.2 g of N-cyclooctylmethyl-N-[2-(4-methoxymethoxy-1-piperidinyl)-ethyl-N-(3-chloropropyl)urea in 20 ml of dimethylformamide was stirred at 80° C. for 1 day. The reaction mixture was poured into ice water, followed by extraction with ethyl acetate. The extract was washed with water and dried with magnesium sulfate. The solvent was removed by distillation. The resulting residue was purified by a silica gel column chromatography (eluant: 5% methanol/dichloromethane) to obtain 0.76 g of 6-[3-{N-[2-(4-methoxymethoxy-1-piperidinyl)ethyl]-N-cyclooctylmethylamino}carbonylaminopropoxy]carbostyril.

Brown oil

¹ H-NMR (CDCl₃) δ; 7.73 (1H, d, J=9.5 Hz), 7.40 (1H, br), 7.29 (1H, d, J=11.4 Hz), 7.15 (1H, dd, J=11.4 Hz, 2.5 Hz), 7.01 (1H, d, 2.5 Hz), 6.70 (1H, d, J=9.5 Hz), 4.65 (2H, s), 4.06 (2H, t, J=6.2 Hz), 3.15-3.65 (8H, m), 3.10 (2H, d, J=7.5 Hz), 2.65-2.90 (2H, m), 2.35-2.60 (2H, m), 2.10-2.35 (2H, m), 1.97-2.10 (2H, t, J=6.5 Hz), 1.10-1.97 (19H, m).

Example 12

A solution of 0.68 g of 6-[3-(N-cyclohexyl-N-methylaminocarbonyl)propoxy]carbostyril and 0.81 g of a Lawesson's reagent in 10 ml of toluene was refluxed for 1.5 hours. The reaction mixture was allowed to cool, followed by solvent removal by distillation. The resulting residue was purified by a silica gel column chromatography (eluant: 2% methanol/dichloromethane) to obtain 0.69 g of 6-[3-(N-cyclohexyl-N-methylaminothiocarbonyl)propoxy]thiocarbostyril.

Yellow powder

Melting point: 170°-172° C.

Example 13

A solution of 13.7 g of 6-[3-(N-cyclohexyl-N-methylaminocarbonyl)propoxy]carbostyril and 4.45 g of phosphorus pentasulfide in 200 ml of benzene was refluxed for 5 hours. The reaction mixture was allowed to cool. The insolubles were removed by filtration. The filtrate was subjected to distillation to remove the solvent. The resulting residue was purified by a silica gel column chromatography (eluant: 5% methanol/dichloromethane) to obtain 7.2 g of 6-[3-(N-cyclohexyl-N-methylaminothiocarbonyl)propoxy]carbostyril.

Yellow powder

Melting point: 167°-170° C.

Using appropriate starting materials, the compounds shown in the following Tables 23-56 were obtained in the same manner as in Example 4.

                  TABLE 23                                                         ______________________________________                                         Example 14                                                                      ##STR108##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 149-150°                                                 Recrystallization solvent: ethyl acetate - diethyl                             ether                                                                          Example 15                                                                      ##STR109##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 117-118° C.                                              Recrystallization solvent: ethyl acetate                                       Example 16                                                                      ##STR110##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 114.5-116° C.                                            Recrystallization solvent: ethyl acetate - diethyl                             ether                                                                          ______________________________________                                    

                  TABLE 24                                                         ______________________________________                                         Example 17                                                                      ##STR111##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 69-74° C.                                                Recrystallization solvent: diethyl ether -                                     diisopropyl ether                                                              Example 18                                                                      ##STR112##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 124-127° C.                                              Recrystallization solvent: diethyl ether                                       Example 19                                                                      ##STR113##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 129.5-131.5° C.                                          Recrystallization solvent: chloroform - diethyl                                ether                                                                          Example 20                                                                      ##STR114##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 153.5-162.0° C.                                          Recrystallization solvent: methanol - diisopropyl                              ether                                                                          ______________________________________                                    

                  TABLE 25                                                         ______________________________________                                         Example 21                                                                      ##STR115##                                                                    W: oxygen atom                                                                 Crystal form: light yellow oil Free form                                       Example 22                                                                      ##STR116##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder Free form                                    Melting point: 96-98° C.                                                Recrystallization solvent: diethyl ether                                       Example 23                                                                      ##STR117##                                                                    W: oxygen atom                                                                 Crystal form: white aciculator Free form                                       Melting point: 143-145° C.                                              Recrystallization solvent: ethyl acetate-diethyl                               ether                                                                          Example 24                                                                      ##STR118##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder Free form                                    Melting point: 105-107° C.                                              Recrystallization solvent: ethyl acetate-diethyl                               ether                                                                          ______________________________________                                    

                  TABLE 26                                                         ______________________________________                                         Example 25                                                                      ##STR119##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder Free form                                    Melting point: 113-115.5° C.                                            Recrystallization solvent: diethyl ether                                       Example 26                                                                      ##STR120##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 148-151° C.                                              Recrystallization solvent: ethyl acetate                                       Example 27                                                                      ##STR121##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder Free form                                    Melting point: 116-118° C.                                              Recrystallization solvent: ethyl acetate                                       diethyl ether                                                                  Example 28                                                                      ##STR122##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 126-131° C.                                              Recrystallization solvent: ethyl acetate-                                      diethyl ether                                                                  ______________________________________                                    

                  TABLE 27                                                         ______________________________________                                         Example 29                                                                      ##STR123##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder Free form                                    Melting point: 134-136° C.                                              Recrystallization solvent: ethyl acetate-methanol                              Example 30                                                                      ##STR124##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 74° C. (decomposed)                                      Recrystallization solvent: ethyl acetate-diethyl                               ether                                                                          Example 31                                                                      ##STR125##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 122-125° C.                                              Recrystallization solvent: methanol - diisopropyl                              ether                                                                          Example 32                                                                      ##STR126##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 135-136° C.                                              Recrystallization solvent: ethyl acetate -                                     diethyl ether                                                                  ______________________________________                                    

                  TABLE 28                                                         ______________________________________                                         Example 33                                                                      ##STR127##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 131-133° C.                                              Recrystallization solvent: ethyl acetate -                                     diethyl ether                                                                  Example 34                                                                      ##STR128##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 217° C. (decomposed)                                     Example 35                                                                      ##STR129##                                                                    W: oxygen atom                                                                 Crystal form: light yellow amorphous Free form NMR (2)                         Example 36                                                                      ##STR130##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 77° C. (decomposed)                                      Recrystallization solvent: ethyl acetate                                       diethyl ether                                                                  ______________________________________                                    

                  TABLE 29                                                         ______________________________________                                         Example 37                                                                      ##STR131##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 98.5-101° C.                                             Recrystallization solvent: methanol - diisopropyl                              ether                                                                          Example 38                                                                      ##STR132##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 128-129.5° C.                                            Recrystallization solvent: methanol -                                          diisopropyl ether                                                              Example 39                                                                      ##STR133##                                                                    W: oxygen atom                                                                 Crystal form: brown oil Free form NMR (3)                                      Example 40                                                                      ##STR134##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder Free form NMR (4)                            ______________________________________                                    

                  TABLE 30                                                         ______________________________________                                         Example 41                                                                      ##STR135##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 139-147° C.                                              Recrystallization solvent: methanol - diethyl                                  ether                                                                          Example 42                                                                      ##STR136##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 165-171° C.                                              Recrystallization solvent: methanol - diethyl ether                            Example 43                                                                      ##STR137##                                                                    W: oxygen atom                                                                 Crystal form: brown caramel-like Free form NMR (5)                             Example 44                                                                      ##STR138##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 143-146° C.                                              Recrystallization solvent: dichloromethane -                                   diisopropyl ether                                                              ______________________________________                                    

                  TABLE 31                                                         ______________________________________                                         Example 45                                                                      ##STR139##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 130-130.5° C.                                            Recrystallization solvent: dichloromethane -                                   diisopropyl ether                                                              Example 46                                                                      ##STR140##                                                                    W: oxygen atom                                                                 Crystal form: brown caramel-like Free form NMR (6)                             Example 47                                                                      ##STR141##                                                                    W: oxygen atom                                                                 Crystal form: light yellow prisms Free form                                    Melting point: 108-109° C.                                              Recrystallization solvent: chloroform -                                        diisopropyl ether                                                              Example 48                                                                      ##STR142##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 94.5-97° C.                                              Recrystallization solvent: isopropanol                                         diisopropyl ether                                                              ______________________________________                                    

                  TABLE 32                                                         ______________________________________                                         Example 49                                                                      ##STR143##                                                                    W: oxygen atom                                                                 Crystal form: colorless acicular Free form                                     Melting point: 126-127.5° C. °C.                                 Recrystallization solvent: dichloromethane -                                   diisopropyl ether                                                              Example 50                                                                      ##STR144##                                                                    W: oxygen atom                                                                 Crystal form: light yellow caramel-like Free form NMR (7)                      Example 51                                                                      ##STR145##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 96.5-98° C.                                              Recrystallization solvent: methanol - diisopropyl                              ether                                                                          Example 52                                                                      ##STR146##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 112-115° C.                                              Recrystallization solvent: methanol - diisopropyl                              ether                                                                          ______________________________________                                    

                  TABLE 33                                                         ______________________________________                                         Example 53                                                                      ##STR147##                                                                    W: oxygen atom                                                                 Crystal form: yellow powder Free form NMR (8)                                  Example 54                                                                      ##STR148##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 106.5-110.5° C.                                          Recrystallization solvent: isopropanol -                                       diisopropyl ether                                                              Example 55                                                                      ##STR149##                                                                    W: oxygen atom                                                                 Crystal form: colorless caramel-like Free form                                 Example 56                                                                      ##STR150##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 161-162° C.                                              Recrystallization solvent: methanol                                            ______________________________________                                    

                  TABLE 34                                                         ______________________________________                                         Example 57                                                                      ##STR151##                                                                    W: oxygen atom                                                                 Crystal form: colorless caramel-like Free form NMR (10)                        Example 58                                                                      ##STR152##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 118-121° C. .5° C.                                Example 59                                                                      ##STR153##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 107.5-108.5°                                             Recrystallization solvent: ethyl acetate                                       Example 60                                                                      ##STR154##                                                                    W: oxygen atom                                                                 Crystal form: brown caramel-like Free form                                     ______________________________________                                    

                  TABLE 35                                                         ______________________________________                                         Example 61                                                                      ##STR155##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 83-86° C. 31.5° C.                                Recrystallization solvent: ethyl acetate - diethyl                             ether                                                                          Example 62                                                                      ##STR156##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 123-125° C.                                              Example 63                                                                      ##STR157##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 98-99° C.                                                Recrystallization solvent: ethyl acetate                                       Example 64                                                                      ##STR158##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 154-155° C.                                              ______________________________________                                    

                  TABLE 36                                                         ______________________________________                                         Example 65                                                                      ##STR159##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 116-120° C.                                              Recrystallization solvent: diethyl ether                                       Example 66                                                                      ##STR160##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 95-97° C.                                                Recrystallization solvent: diethyl ether                                       Example 67                                                                      ##STR161##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 168-171° C.                                              Recrystallization solvent:                                                     methanol - diisopropyl ether                                                   Example 68                                                                      ##STR162##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 94-98° C.                                                Recrystallization solvent:                                                     ethyl acetate - diethyl ether                                                  ______________________________________                                    

                  TABLE 37                                                         ______________________________________                                         Example 69                                                                      ##STR163##                                                                    W: oxygen atom                                                                 Crystal form: colorless caramel-like                                                                      Free form                                           Example 70                                                                      ##STR164##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 124.5-125.5° C.                                          Recrystallization solvent: ethyl acetate                                       Example 71                                                                      ##STR165##                                                                    W: oxygen atom                                                                 Crystal form: light brown powder                                                                          Free form                                           Melting point: 100-102° C.                                              Recrystallization solvent: diethyl ether                                       Example 72                                                                      ##STR166##                                                                    W: oxygen atom                                                                 Crystal form: light brown thin plate                                                                      Free form                                           Melting point: 164-165° C.                                              Recrystallization solvent: water                                               ______________________________________                                    

                  TABLE 38                                                         ______________________________________                                         Example 73                                                                      ##STR167##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 132-136° C.                                              Recrystallization solvent: ethyl acetate                                       Example 74                                                                      ##STR168##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 173.5-176° C.                                            Recrystallization solvent: methanol - ethyl acetate                            Example 75                                                                      ##STR169##                                                                    W: oxygen atom                                                                 Crystal form: light brown powder                                                                          Free form                                           Melting point: 165-167° C.                                              Recrystallization solvent: methanol - ethyl acetate                            Example 76                                                                      ##STR170##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 157-157.5° C.                                            Recrystallization solvent: isopropanol                                         ______________________________________                                    

                  TABLE 39                                                         ______________________________________                                         Example 77                                                                      ##STR171##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 179.5° C.                                                Recrystallization solvent: diethyl ether                                       Example 78                                                                      ##STR172##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 181-183° C.                                              Recrystallization solvent: ethanol                                             Example 79                                                                      ##STR173##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 171-172° C.                                              Recrystallization solvent: ethyl acetate-diethyl ether                         Example 80                                                                      ##STR174##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 145-148° C.                                              Recrystallization solvent: ethyl acetate                                       ______________________________________                                    

                  TABLE 40                                                         ______________________________________                                         Example 81                                                                      ##STR175##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 163.5-167° C.                                            Recrystallization solvent: ethyl acetate-diethyl ether                         Example 82                                                                      ##STR176##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 200-205° C.                                              Example 83                                                                      ##STR177##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 189-190.5° C.                                            Recrystallization solvent: ethanol                                             Example 84                                                                      ##STR178##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 172-174.5° C.                                            Recrystallization solvent: ethyl acetate-diethyl ether                         ______________________________________                                    

                  TABLE 41                                                         ______________________________________                                         Example 85                                                                      ##STR179##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 182.5-184.5° C.                                          Recrystallization solvent: methanol - diethyl ether                            Example 86                                                                      ##STR180##                                                                    W: oxygen atom                                                                 Crystal form: yellow powder                                                                               Free form                                           Melting point: 192-195° C.                                              Example 87                                                                      ##STR181##                                                                    W: sulfur atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 164-165.5° C.                                            Recrystallization solvent: diethyl ether                                       Example 88                                                                      ##STR182##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 161-163° C.                                              ______________________________________                                    

                  TABLE 42                                                         ______________________________________                                         Example 89                                                                      ##STR183##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 165.5-167° C.                                            Example 90                                                                      ##STR184##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 129-130.5° C.                                            Example 91                                                                      ##STR185##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 98° C.                                                   Example 92                                                                      ##STR186##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 180° C. (decomposed)                                     Recrystallization solvent: ethanol                                             ______________________________________                                    

                  TABLE 43                                                         ______________________________________                                         Example 93                                                                      ##STR187##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 147-152° C.                                              Example 94                                                                      ##STR188##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 164-165° C.                                              Example 95                                                                      ##STR189##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 169.5-171.5° C.                                          Recrystallization solvent: methanol                                            Example 96                                                                      ##STR190##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 140-141.5° C.                                            Recrystallization solvent: ethyl acetate                                       ______________________________________                                    

                  TABLE 44                                                         ______________________________________                                         Example 97                                                                      ##STR191##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 154-155° C.                                              Recrystallization solvent: chloroform - diethyl ether                          Example 98                                                                      ##STR192##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 168.5-169° C.                                            Recrystallization solvent: ethanol                                             Example 99                                                                      ##STR193##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 151.5-154.5° C.                                          Recrystallization solvent: diethyl ether                                       Example 100                                                                     ##STR194##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 129.5-130.5° C.                                          Recrystallization solvent: ethyl acetate-diethyl ether                         ______________________________________                                    

                  TABLE 45                                                         ______________________________________                                         Example 101                                                                     ##STR195##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 154.5-155.5° C.                                          Example 102                                                                     ##STR196##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 107-110° C.                                              Example 103                                                                     ##STR197##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 129-131° C.                                               Example 104                                                                    ##STR198##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 163-164.5° C.                                            ______________________________________                                    

                  TABLE 46                                                         ______________________________________                                         Example 105                                                                     ##STR199##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 156-158.5° C.                                            Example 106                                                                     ##STR200##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 141.5-143.5° C.                                          Example 107                                                                     ##STR201##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 138.5-141° C.                                            Recrystallization solvent: diethyl ether                                       Example 108                                                                     ##STR202##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 133-136° C.                                              ______________________________________                                    

                  TABLE 47                                                         ______________________________________                                         Example 109                                                                     ##STR203##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 181.5-183.5° C.                                          Recrystallization solvent: water-ethanol                                       Example 110                                                                     ##STR204##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 133-134° C.                                              Recrystallization solvent: diethyl ether                                       Example 111                                                                     ##STR205##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 180-182.5° C.                                            Recrystallization solvent: methanol-diethyl ether                              Example 112                                                                     ##STR206##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 109° C.                                                  ______________________________________                                    

                  TABLE 48                                                         ______________________________________                                         Example 113                                                                     ##STR207##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 141° C. (decomposed)                                     Example 114                                                                     ##STR208##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 128° C.                                                  Example 115                                                                     ##STR209##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 135-137° C.                                              Recrystallization solvent: methanol                                            Example 116                                                                     ##STR210##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 156-158° C.                                              Recrystallization solvent: ethyl acetate                                       ______________________________________                                    

                  TABLE 49                                                         ______________________________________                                         Example 117                                                                     ##STR211##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 143-145° C.                                              Recrystallization solvent: ethyl acetate                                       Example 118                                                                     ##STR212##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 130-132° C.                                              Recrystallization solvent: methanol                                            Example 119                                                                     ##STR213##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 158-160° C.                                              Recrystallization solvent: ethyl acetate                                       Example 120                                                                     ##STR214##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 154-155° C.                                              Recrystallization solvent: ethyl acetate                                       ______________________________________                                    

                  TABLE 50                                                         ______________________________________                                         Example 121                                                                     ##STR215##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 175-176° C.                                              Example 122                                                                     ##STR216##                                                                    W: oxygen atom                                                                 Crystal form: light brown powder                                                                          Free form                                           Melting point: 120-126° C.                                              Recrystallization solvent: ethyl acetate                                       Example 123                                                                     ##STR217##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 137-139° C.                                              Recrystallization solvent: ethyl acetate                                       Example 124                                                                     ##STR218##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 132-138° C.                                              Recrystallization solvent: ethyl acetate                                       ______________________________________                                    

                  TABLE 51                                                         ______________________________________                                         Example 125                                                                     ##STR219##                                                                    W: oxygen atom                                                                 Crystal form: light brown powder                                                                          Free form                                           Melting point: 127-129° C.                                              Recrystallization solvent: ethyl acetate                                       Example 126                                                                     ##STR220##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 84-90° C.                                                Recrystallization solvent: diethyl ether                                       Example 127                                                                     ##STR221##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 206-208° C.                                              Recrystallization solvent: methanol                                            Example 128                                                                     ##STR222##                                                                    W: oxygen atom                                                                 Crystal form: colorless acicular                                                                          Free form                                           Melting point: 105-109° C.                                              Recrystallization solvent: ethyl acetate                                       ______________________________________                                    

                  TABLE 52                                                         ______________________________________                                         Example 129                                                                     ##STR223##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 123-125° C.                                              Recrystallization solvent: methanol                                            Example 130                                                                     ##STR224##                                                                    W: oxygen atom                                                                 Crystal form: light yellow powder                                                                         Free form                                           Melting point: 179-181° C.                                              Recrystallization solvent: ethyl acetate                                       Example 131                                                                     ##STR225##                                                                    W: oxygen atom                                                                 Crystal form: white amorphous                                                                             Free form                                                                      NMR (13)                                            Example 132                                                                     ##STR226##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 138-138.5° C.                                            ______________________________________                                    

                  TABLE 53                                                         ______________________________________                                         Example 133                                                                     ##STR227##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 156-158.5° C.                                            Recrystallization solvent: diethyl ether                                       Example 134                                                                     ##STR228##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                           Melting point: 138.5-139.5° C.                                          Recrystallization solvent: ethyl acetate                                       Example 135                                                                     ##STR229##                                                                    W: oxygen atom                                                                 Crystal form: yellow powder                                                                               Free form                                           Melting point: 170-172° C.                                              Example 136                                                                     ##STR230##                                                                    W: oxygen atom                                                                 Crystal form: light yellow oil                                                                            Free form                                                                      NMR (14)                                            ______________________________________                                    

                  TABLE 54                                                         ______________________________________                                         Example 137                                                                     ##STR231##                                                                    W: oxygen atom                                                                 Crystal form: light yellow oil                                                                            Free form                                                                      NMR (15)                                            Example 138                                                                     ##STR232##                                                                    W: oxygen atom                                                                 Crystal form: light yellow oil                                                                            Free form                                                                      NMR (16)                                            Example 139                                                                     ##STR233##                                                                    W: oxygen atom                                                                 Crystal form: brown oil    Free form                                                                      NMR (17)                                            Example 140                                                                     ##STR234##                                                                    W: oxygen atom                                                                 Crystal form: light yellow oil                                                                            Free form                                                                      NMR (20)                                            ______________________________________                                    

                  TABLE 55                                                         ______________________________________                                         Example 141                                                                     ##STR235##                                                                    W: oxygen atom                                                                 Crystal form: light yellow oil                                                                            Free form                                                                      NMR (21)                                            Example 142                                                                     ##STR236##                                                                    W: oxygen atom                                                                 Crystal form: white powder Free form                                                                      NMR (22)                                            Example 143                                                                     ##STR237##                                                                    W: oxygen atom                                                                 Crystal form: yellow powder                                                                               Free form                                           Melting point: 167-170° C.                                              Example 144                                                                     ##STR238##                                                                    W: oxygen atom                                                                 Crystal form: light yellow oil                                                                            Free form                                                                      NMR (18)                                            ______________________________________                                    

                  TABLE 56                                                         ______________________________________                                         Example 145                                                                     ##STR239##                                                                    W: oxygen atom                                                                 Crystal form: colorless oil                                                                               Free form                                                                      NMR (19)                                            ______________________________________                                    

(1) ¹ H-NMR (CDCl₃) δ; 1.2-2.0 (21H, m), 2.15-2.25 (2H, m), 2.7-2.9 (2H, m), 3.1-3.3 (4H, m), 3.3-3.5 (2H, m), 3.6-3.7 (1H, m), 3.9-4.1 (2H, m), 6.71 (1H, d, J=9.5 Hz), 6.9-7.4 (3H, m), 7.74 (1H, d, J=9.5 Hz).

(2) ¹ H-NMR (CDCl₃) δ; 1.4-1.9 (10H, m), 2.1-2.3 (2H, m), 2.45-2.55 (4H, m), 2.6-2.7 (2H, m), 2.7-2.8 (2H, m), 3.54 (2H, s), 3.65-3.75 (2H, m), 3.86 (6H, s), 3.97 (2H, t, J=6.5 Hz), 6.70 (1H, d, J=9.5 Hz), 6.75-6.85 (H, m), 6.91 (H, m), 6.97 (1H, d, J=2.5 Hz), 7.13 (1H, dd, J=2.5 Hz, 9.0 Hz), 7.29 (1H, d, J=9.0 Hz), 7.73 (1H, d, J=9.5 Hz).

(3) ¹ H-NMR (CDCl₃) δ; 1.35-1.7 (6H, m), 1.7-2.0 (4H, m), 2.05-2.25 (2H, m), 2.4-2.65 (4H, m), 2.65-2.85 (4H, m), 3.6-3.8 (3H, m), 3.97 (2H, t, J=6 Hz), 6.72 (1H, d, J=9.5 Hz), 6.97 (1H, d, J=2.5 Hz), 7.05-7.2 (2H, m), 7.37 (1H, d, J=9 Hz), 7.38-7.58 (1H, m), 7.63 (1H, dt, J=7.5 Hz, 1.5 Hz), 7.75 (1H, d, J=9.5 Hz), 8.41-8.61 (1H, m).

(4) ¹ H-NMR (CD₃ OD) δ; 1.40-1.95 (10H, m), 2.25 (2H, brt, J=8.5 Hz), 2.40-2.90 (8H, m), 3.50-3.70 (1H, m), 3.85 (2H, s), 4.03 (2H, t, J=6.5 Hz), 6.60 (1H, d, J=9.5 Hz), 6.94 (2H, brs), 7.15-7.35 (4H, m), 7.92 (1H, d, J=9.5 Hz).

(5) ¹ H-NMR (CDCl₃) δ; 1.15-2.00 (25H, m), 2.20 (2H, brd, J=6.5 Hz), 2.45-2.60 (2H, m), 2.85 (2H, brs), 3.05-3.50 (4H, m), 4.01 (2H, t, J=6.5 Hz), 6.71 (1H, d, J=9.5 Hz), 7.00 (1H, brs), 7.10-7.40 (3H, m), 7.76 (1H, d, J=9.5 Hz).

(6) ¹ H-NMR (CD₃ OD) δ;

1.15-1.90 (23H, m), 2.01 (2H, brt, J=12 Hz), 2.10-2.35 (2H, m), 2.29 (6H, s), 2.35-2.60 (6H, m), 3.01 (2H, brd, J=12 Hz), 4.06 (2H, t, J=6 Hz), 6.61 (1H, d, J=9.5 Hz) , 7.15-7.35 (3H, m), 7.92 (1H, d, J=9.5 Hz).

(7) ¹ H-NMR (CD₃ OD) δ; 0.90-1.10 (2H, m), 1.15-2.15 (19H, m), 2.60-3.75 (13H, m), 4.07 (2H, J=6 Hz), 6.62 (1H, d, J=9.5 Hz), 7.15-7.35 (3H, m), 7.94 (1H, d, J=9.5 Hz).

(8) ¹ H-NMR (CD₃ OD) δ; 1.45-2.10 (10H, m), 2.25-2.50 (2H, m) , 2.61 (1H, brs), 2.75-3.30 (5H, m), 3.98 (3H, s), 3.03 (3H, s), 3.77 (1H, brs), 4.06 (2H, brs), 4.38 (1H, brd, J=12 Hz), 6.51 (1H, d, J=9.5 Hz), 7.16 (2H, brs), 7.29 (1H, brs), 7.40-7.60 (5H, m), 7.91 (1H, d, J=9.5 Hz).

(9) ¹ H-NMR (CDCl₃) δ; 1.40-2.05 (8H, m), 2.15-2.70 (5H, m), 2.90-3.20 (2H, m), 3.35-3.80 (6H, m), 3.97 (2H, t, J=6.5 Hz), 6.70 (1H, d, J=9.5 Hz), 6.98 (1H, d, J=2.5 Hz), 7.10-7.60 (6H, m), 7.74 (2H, d, J=9.5 Hz).

(10) ¹ H-NMR (CD₃ OD) δ; 1.4-1.9 (6H, m), 2.3-2.7 (16H, m), 3.55-3.75 (4H, m), 4.01 (2H, t, J=6.5 Hz), 6.01 (1H, d, J=9.5 Hz), 7.15-7.45 (8H, m), 7.91 (1H, d, J=9.5 Hz).

(11) ¹ H-NMR (CD₃ OD) δ; 1.10-1.95 (19H, m), 2.24 (2H, d, J=7 Hz), 2.57 (2H, t, J=7 Hz), 2.70 (2H, t, J=6 Hz), 2.90-3.10 (4H, m), 3.74 (2H, t, J=5.5 Hz), 4.07 (2H, t, J=6 Hz), 6.62 (1H, d, J=9.5 Hz), 7.15-7.35 (3H, m), 7.92 (1H, d, J=9.5 Hz).

(12) ¹ H-NMR (CD₃ OD) δ; 1.30-1.75 (6H, m), 2.46 (2H, t, J=6 Hz), 2.77 (2H, t, J=6 Hz), 3.60 (2H, s), 3.96 (2H, t, J=6 Hz), 4.05 (2H, t, J=6 Hz), 6.61 (1H, d, J=9.5 Hz), 6.91 (1H, s), 7.05 (1H, s), 7.10-7.35 (8H, m), 7.60 (1H, s), 7.91 (1H, d, J=9.5 Hz).

(13) ¹ H-NMR (CDCl₃) δ; 1.2-1.9 (19H, m), 1.95-2.1 (2H, m), 2.15-2.25 (2H, m), 2.49 (2H, t), 2.7-2.85 (2H, m), 3.1 (2H, d, J=7.5 Hz), 3.27 (2H, t), 3.3-3.45 (2H, m), 3.65-3.8 (1H, m), 4.07 (2H, t, J=6 Hz), 6.7 (1H, d, J=9.5 Hz), 7.00 (1H, d, J=2.5 Hz), 7.15 (1H, dd, J=2.5 Hz, 9 Hz), 7.3 (1H, d, J=9 Hz), 7.73 (1H, d, J=9.5 Hz).

(14) ¹ H-NMR (CDCl₃) δ; 1.5-1.9 (8H, m), 2.12 (2H, m), 2.5 (4H, m), 2.6 (2H, m), 2.7 (2H, m), 3.36 (3H, s), 3.6 (1H, m), 3.60 (2H, s), 3.95 (2H, t, J=6 Hz), 4.67 (2H, s), 6.71 (H, d, J=9.5 Hz), 6.93 (1H, d, J=2.5 Hz), 7.12 (1H, dd, 2.5 Hz, 9 Hz), 7.2-7.3 (6H, m).

(15) ¹ H-NMR (CDCl₃) δ; 1.7-2.0 (8H, m), 2.3 (2H, m), 2.5 (2H, m), 2.8 (2H, m), 3.37 (3H, s), 3.4 (2H, m), 3.5 (2H, m), 3.6 (1H, m), 4.02 (2H, t, J=6 Hz), 4.68 (2H, s), 6.63-6.73 (4H, m), 6.97 (1H, d, J=2.5 Hz), 7.12-7.23 (3H, m), 7.33 (1H, d, J=9 Hz), 7.74 (1H, d, J=9.5 Hz).

(16) ¹ H-NMR (CDCl₃) δ; 7.75 (1H, d, J=9.5 Hz), 7.35 (1H, d, J=9 Hz), 7.15 (1H, dd, J=9 Hz, 2.6 Hz), 7.01 (1H, d, J=2.6 Hz), 6.73 (1H, d, J=9.5 Hz), 4.68 (2H, s), 4.15 (2H, t, J=5.8 Hz), 3.75-3.95 (1H, m), 3.58-3.69 (1H, m), 3.37 (3H, s), 3.22-3.35 (4H, m), 2.75-2.90 (2H, m), 2.55-2.68 (2H, m), 2.18-2.40 (4H, m), 1.40-2.05 (18H, m).

(17) ¹ H-NMR (CDCl₃) δ; 7.73 (1H, d, J=9.5 Hz), 7.40 (1H, br), 7.29 (1H, d, J=11.4 Hz), 7.15 (1H, dd, J=11.4 Hz, 2.5 Hz), 7.01 (1H, d, J=2.5 Hz), 6.70 (1H, d, J=9.5 Hz), 4.65 (2H, s), 4.06 (2H, t, J=6.2 Hz), 3.15-3.65 (8H, m), 3.10 (2H, d, J=7.5 Hz), 2.65-2.90 (2H, m), 2.35-2.60 (2H, m), 2.10-2.35 (2H, m), 1.97-2.10 (2H, t, J=5.6 Hz), 1.10-1.97 (19H, m).

(18) ¹ H-NMR (CDCl₃) δ; 1.15-1.85 (15H, m), 2.2-2.4 (2H, m), 2.45-2.8 (4H, m), 2.85-3.1 (4H, m), 3.15-3.4 (10H, m), 4.05-4.2 (4H, m), 4.55-4.7 (4H, m), 6.72 (1H, d, J=9.5 Hz), 7.0 (1H, d, J=2.5 Hz) 7.15 (1H, dd, J=2.5 Hz, 9.0 Hz), 7.32 (1H, d, J=9 Hz), 7.74 (1H, d, J=9.5 Hz).

(19) ¹ H-NMR (CDCl₃) δ; 1.10-2.00 (23H, m), 2.10-2.65 (8H, m), 2.80-3.25 (2H, m), 3.36 (3H, s), 3.45-3.65 (2H, m), 3.95-4.10 (2H, m), 4.63 (2H, s), 6.70 (1H, d, J=9.5 Hz), 6.99 (1H, brs), 7.15 (1H, brd, J=9 Hz), 7.31 (1H, d, J=9 Hz), 7.74 (1H, d, J=9.5 Hz).

(20) ¹ H-NMR (CDCl₃) δ; 1.5-1.7 (2H, m), 1.75-1.9 (4H, m), 2.15-2.3 (2H, m), 2.6-2.7 (2H, m), 2.7-2.8 (2H, m), 2.85-2.95 (4H, m), 3.45 (3H, s), 3.5-3.65 (1H, m), 3.95-4.05 (2H, m), 4.65 (2H, s), 6.64 (1H, d, J=9.5 Hz), 6.91 (1H, d, J=2.5 Hz), 7.05 (1H, dd, J=2.5 Hz, 9.0 Hz), 7.39 (1H, d, J=9.0 Hz), 7.70 (1H, d, J=9.5 Hz), 8.00 (1H, br).

(21) ¹ H-NMR (CDCl₃) δ; 1.0-2.0 (19H, m), 2.1-2.3 (2H, m), 2.4-2.6 (2H, m), 2.7-2.9 (2H, m), 3.2-3.4 (4H, m), 3.36 (3H, s), 3.5-3.65 (1H, m), 3.95-4.05 (2H, m), 4.67 (2H, s), 6.71 (1H, d, J=9.5 Hz), 7.13 (1H, dd, J=2.5 Hz, 9.0 Hz), 7.34 (1H, d, J=9.0 Hz), 7.75 (1H, d, J=9.5 Hz).

(22) ¹ H-NMR (CDCl₃) δ; 1.6-1.7 (4H, m), 2.25-2.35 (2H, m), 3.11 (2H, t, J=7.5 Hz), 3.25-3.35 (2H, m), 3.67 (2H, t, J=6.0 Hz), 3.9-4.0 (2H, m), 4.44 (2H, s), 6.71 (2H, d, J=9.5 Hz), 6.92 (1H, d, J=2.5 Hz), 7.09 (1H, d, J=2.5 Hz, 9.0 Hz), 7.3-7.4 (6H, m), 7.73 (1H, d, J=9.5 Hz).

Example 146

Using appropriate starting materials, the compounds of Examples 4, 14-75, 115-130, 137, 140-142 and 145 were obtained in the same manners as in Examples 1 and 8.

Example 147

Using appropriate starting materials, the compounds of Examples 14-18, 20-26, 28-42, 48-52, 54-55, 71-75, 78-96, 99, 102-104, 106, 115, 117, 119, 124, 126-132 and 134 were obtained in the same manner as in Example 2.

Example 148

Using appropriate starting materials, the compound of Example 113 was obtained in the same manner as in Example 3.

Example 149

Using appropriate starting materials, the compounds of Examples 76-92, 94-114 and 144 were obtained in the same manner as in Example 5.

Example 150

Using appropriate starting materials, the compounds of Examples 14-71, 76-141 and 143-145 were obtained in the same manners as in Examples 6 and 9.

Examples 151

Using appropriate starting materials, the compounds of Examples 115-122 and 124-126 were obtained in the same manner as in Example 7.

Example 152

Using appropriate starting materials, the compound of Example 132 was obtained in the same manner as in Example 10.

Example 153

Using appropriate starting materials, the compounds of Examples 131 and 133 were obtained in the same manner as in Example 11.

Pharmacological Test I

The platelets aggregation inhibitory activity of each test compound was measured by the method of Born et al. [J. Physiol., London, 162, 67 (1962)], using Platelets Aggregation Tracer manufactured by Nikoh Bioscience Co., Ltd.

9 volumes of a blood collected from man was mixed with 1 volume of a 3.8% aqueous sodium citrate solution. Part of the mixture was subjected to centrifugation at 1,100 rpm for 10 minutes to obtain a platelet rich plasma (PRP). The remainder of the mixture was also subjected to centrifugation at 3,000 rpm for 10 minutes to obtain a platelet poor plasma (PPP).

The number of platelets in the PRP was measured using Coulter Counter manufactured by Coulter Electronics Inc. Then, the PRP was diluted with the PPP so that the number of platelets in the dilution became 300,000, whereby a PRP solution was prepared.

200 μl of this PRP solution and 2 ml of a solution containing a test compound at a given concentration were placed in an aggregation measurement cell and heated at 37° C. for 1 minute. Thereto was added 20 μl of adenosine diphosphate (ADP manufactured by Sigma Co.) or a collagen suspension (Collagen Reagent manufactured by Horm, Hormon-Chemie, Gmbh) to induce aggregation of platelets. The resulting mixture in the cell was measured for change of transmittance, after which a platelets aggregation curve was prepared. Incidentaly, the concentration of ADP or collagen was selected so that the final Concentration became 7.5 μM or 20 μg/ml.

Using the platelets aggregation curve, there was calculated a maximum aggregation rate (MAR) of platelets using the followoing formula:

    MAR=[(b-a)/(c-a)]×100

wherein a represents a transmittance of the PRP obtained in the same manner; c represents a transmittance of the PPP obtained in the same manner; and b represents a transmittance at the maximum change, of the PRP solution containng the test compound and the aggregation inducer.

A MAR was also calculated as above, for the control containing no test compound.

Using the above two MARs, there were calculated platelets aggregation inhibitions (%) of each test compound at various concentrations using the following formula.

    Inhibition=[1-(MAR of PRP solution containing test compound)/(MAR of PRP solution containing no test compound)]×100

Using the above obtained platelets aggregation inhibitions (%) of each test compound at various concentrations, there was calculated a concentration (IC₅₀) of each test compound for 50% platelets aggregation inhibition.

The IC₅₀ values obtained for some of the compounds obtained in the Examples, each used as a test compound are shown in Table 57 and Table 58.

                  TABLE 57                                                         ______________________________________                                         Test             IC.sub.50 (μM)                                             compound         ADP    Collagen                                               ______________________________________                                         Example 15       10     3.6                                                    Example 16       6.3    7.4                                                    Example 19       6.1    5.3                                                    Example 20       2      1.2                                                    Example 21       4.2    3.1                                                    Example 23       8      9.5                                                    Example 24       14     14                                                     Example 26       15     14                                                     Example 27       6.7    7.7                                                    Example 29       12     6.3                                                    Example 30       3.7    2                                                      Example 32       4.8    6.1                                                    Example 33       5.6    9.1                                                    Example 35       11     11                                                     Example 36       11     20                                                     Example 40       13     10                                                     Example 41       8.7    11                                                     Example 42       20     13                                                     Example 45       22     25                                                     Example 46       20     20                                                     Example 47       25     29                                                     Example 49       6.9    22                                                     Example 53       11     13                                                     Example 55       3.7    2.6                                                    Example 56       14     7.7                                                    Example 57       18     17                                                     Example 58       3.8    4.8                                                    Example 60       15     5.3                                                    Example 61       4.9    6.3                                                    Example 62       18     17                                                     Example 64       9      10                                                     Example 65       11     14                                                     Example 67       4.5    2.9                                                    Example 68       15     7.1                                                    Example 69       15     9.5                                                    Example 70       40     22                                                     Example 71       18     7.4                                                    Example 73       25     6.9                                                    Example 74       17     20                                                     Example 75       9.1    13                                                     Example 77       2.1    4.9                                                    Example 78       1.4    0.38                                                   Example 79       1.3    2.5                                                    Example 80       13     15                                                     Example 81       6.1    11                                                     Example 82       4.5    3.8                                                    Example 83       11     4.3                                                    Example 84       9.5    9.1                                                    ______________________________________                                    

                  TABLE 58                                                         ______________________________________                                         Test             IC.sub.50 (μM)                                             compound         ADP    Collagen                                               ______________________________________                                         Example 85       2.1    0.57                                                   Example 86       8      12                                                     Example 87       4.7    --                                                     Example 88       2.8    1.4                                                    Example 89       7.7    3.8                                                    Example 90       5.3    5.4                                                    Example 93       1.2    2.6                                                    Example 94       1.4    2.3                                                    Example 95       10     7.1                                                    Example 96       8.7    6.5                                                    Example 97       14     18                                                     Example 98       9.1    12                                                     Example 99       2.9    3.5                                                    Example 100      13     6.5                                                    Example 101      2.9    3.2                                                    Example 102      9.5    15                                                     Example 103      2.6    3.2                                                    Example 104      3.5    2.3                                                    Example 105      2.2    1.1                                                    Example 106      1.4    0.9                                                    Example 107      3.4    3.2                                                    Example 108      2.9    2                                                      Example 109      4.9    6.3                                                    Example 110      4.7    8.3                                                    Example 111      2.2    2.9                                                    Example 112      0.83   0.69                                                   Example 114      6.5    4                                                      Example 119      20     20                                                     Example 122      22     29                                                     Example 123      17     9.5                                                    Example 126      10     15                                                     Example 128      25     20                                                     Example 130      14     13                                                     Example 131      2.4    1.3                                                    Example 132      2.4    1.8                                                    Example 133      2.9    --                                                     Example 135      22     --                                                     Example 143      3.8    2.3                                                    ______________________________________                                    

Pharmacological Test II

The heart rate-increasing activity and blood pressure hypotensive activity of each test compound were measured by the following method, using mongrel dogs each weighing 10-20 kg. That is, said dogs were anesthesized by intravenous injection of pentobarbital sodium, then fixed at the back, and tested under artificial respiration. The blood pressures of the dogs were measured by a blood pressure measuring transducer (P23×L manufactured by Gould Statham Instruments, Inc.) via cannula inserted into the femoral artery. The heart rates of the dogs were measured using the pulse wave of the blood pressure of each dog, via a tachometer. The signals of these testng apparatuses were recorded on a thermal pen-type recorder (Recti-Horize 8K manufactured by Nippon Denki-San-ei Sha).

Some of the compounds obtained in the above Examples were used as test compounds. They were dissolved in N, N'-dimethylformamide, and each solution was administered to test dogs via a cannula inerted into the femoral artery of each dog, in such an amount (amount of test compound) of 300 μg/kg. Then, the heart rate of each dog was measured according to the above method and a maximum change in heart rate was calculated.

The results are shown in Table 59.

                  TABLE 59                                                         ______________________________________                                                      Maximum change in heart rate                                                   (beats/minute)                                                    Test compound                                                                               dose: 300 mg/kg)                                                  ______________________________________                                         Example 15   1                                                                 Example 16   1                                                                 Example 19   24                                                                Example 23   -2                                                                Example 27   7                                                                 Example 28   0                                                                 Example 61   17                                                                Example 62   2                                                                 Example 68   30                                                                Example 83   9                                                                 Example 85   13                                                                Example 109  16                                                                ______________________________________                                    

Pharmacological Test III

A blood was collected from a healthy man with normal platelets function by addition of 0.1% disodium ethylenediaminetetraacetate (EDTA.4Na) and immediately subjected to separation of a platelet rich plasma (PRP). The PRP was washed twice with a Tyrode's buffer solution (50mM TRIS, 0.1% EDTA, Ca (-), Mg (-), 0.14% BSA added, pH=7.4), and suspended in the buffer solution so that the number of platelets in the resulting suspension became 300, 000/ml, to obtain a platelets suspension (EDTA-WP). 4 mg of Type I manufactured by Sigma Co., derived from a bovine skin was dissolved in 0.25 ml of acetic acid (83.5 mM); 8 ml of distilled water was added thereto; an ultrasonic wave was applied to the mixture at 4° C. for 2 minutes; 5 ml of the supernatant liquid was separated as a collagen solution. Each test compound was dissolved in dimethylformamide (DMF) so as to give a concentration of at least 2×10⁻¹² M when possible, to prepare a test compound solution. The change in turbidity of platelets suspension was recorded as a change in transmitted light emitted from a glass cell containing the suspension, using a platelets aggregation tracer manufactured by Nikoh Bioscience K.K., generally used in the test of platelets aggregation function, whereby the adherence of platelets was measured. Incidentally, in recoridng the change in transmitted light, the sensitivity of the recorder was 5 times as high as that used generally. 200 μl of the EDTA-WP was placed in a glass cell exclusively used for the above platelets aggregation tester. Further, 1 μl of the test compound solution was added. The mixture was incubated at room temperature for 5 minutes. Then, the cell was set in the platelets aggregation tracer and was allowed to stand for 1 minute until the temperature became 37° C. Thereafter, about 20 μl (50 μg/ml) of the collagen solution was added, and the adherence of platelets were measured.

The inhibitions (%) of collagen-induced platelets adhesion by each test compound at various concentrations were calculated using the following formula.

    Inhibition (%)=[1-(platelets adherence when test compound added)/ (platelets adherence when no test compound added)]×100

The results are shown in Table 60.

                  TABLE 60                                                         ______________________________________                                                               Inhibition (%) of collagen-                              Test compound                                                                             Dose (μM)                                                                              induced platelets adherence                              ______________________________________                                         Example 16 10         48                                                       Example 20 10         49                                                       Example 28 10         48                                                       Example 75 300        57                                                       Example 85 3          50                                                       Example 86 10         47                                                       Example 119                                                                               10         40                                                       Example 123                                                                               10         39                                                       Example 130                                                                               10         43                                                       Example 134                                                                               10         45                                                       Example 53 30         35                                                       Example 76 30         35                                                       Example 62 100        54                                                       Example 61 30         35                                                       Example 27 30         40                                                       Example 64 30         31                                                       Example 73 100        36                                                       Example 121                                                                               30         38                                                       ______________________________________                                    

Pharmacological Test IV

The cyclic AMP phosphodiesterase inhibitory activity of the present compound was measured in accordance with the method described in Biochimica et Biophysica Acta Vol. 429, pp. 485-497 (1976) and Biochemical Medicine Vol. 10, pp. 301-311 (1974).

That is, the PRP sample of man used in Pharmacological Test I was subjected to further centrifugation at 3,000 rpm for 10 minutes. To the resulting platelets was added 10 ml of a solution (pH=74) obtained by adding 1 mM of MgCl₂ to a TRIS-HCl buffer solution (50 mM). The mixture was subjected to homogenization to grind the platelets in the mixture; then, freezing and thawing were conducted twice, followed by an ultrasonic wave treatment and ultracentrifugation in this order; the resulting supernatant liquid was used as a crude enzyme solution.

The crude enzyme solution was poured into a DEAE-cellulose column buffered with a TRIS-HCl buffer solution (pH=6.0, 50 mM), and washing and elution was conducted with 30 ml of the same buffer solution. Then, elution was conducted with a sodium acetate-TRIS-HCl buffer solution by a linear gradient method at a flow rate of 0.5 ml/minute to obtain fractions each of 5 ml (total eluate amount=about 300 ml). Thus, there was obtained a fraction having a weak activity of 2 nM/ml/min or less at a high cyclic AMP substrate concentration of 100 μM and a strong activity of 100 pM/ml/min or more at a low cyclic AMP substrate concentration of 0.4 μM, and the fraction was used as a cyclic AMP phosphodiesterase solution.

0.1 ml of one of aqueous solutions containing each test compound at various concentrations was mixed with a TRIS-HCl buffer solution (pH=8.0, 40 mM, contains 50 μg of a bovine serum albumin and 4 mM of MgCl₂) cntaining 0.4 μM of cyclic AMP (tritium cyclic AMP), to prepare 0.2 ml of a substrate solution.

To the substrate solution was added 0.2 ml of the cyclic AMP phosphodiesterase solution. The mixture was subjected to a reaction at 30° C. for 20 minutes to convert the tritium cyclic AMP to tritium 5'-AMP. The reaction mixture was immersed in boiling water to terminate the reaction, and then cooled in ice water. Thereto was added 0.05 ml of a snake venom (1 mg/ml), and the mixture was subjected to a reaction at 30° C. for 10 minutes to convert the tritium 5'-AMP to tritium adenosine. The reaction mixture was passed through a cation exchange resin to allow the resin to adsorb the tritium adenosine. The resulting resin was washed with distilled water, and elution was conducted with 1.5 ml of a 3N ammonia water. The eluate was measured for radioactivity of tritium adenosine by an ordinary method using a liquid scintillation counter, to determine a phosphodiesterase activity.

Thus, there were determined the phosphodiesterase activities (Vs) of each test compound at various concentrations. Using the Vs and a Vc (the activity of a control, i.e. a water containing no test compound), there was calculated a phosphodiesterase inhibition (%) using the following formula.

    Phosphodiesterase inhibition (%)=[(Vc-Vs)/Vc]×100

Thus, there were calculated the phosphodiesterase inhibitions (%) of each test compound at various concentrations. Using these values, there was determined a 50% phosphodiesterase inhibition concentration (IC₅₀) of each test compound.

In Table 61 are shown the IC₅₀ values of some of the compounds obtained in the Examples, each used as a test compound.

                  TABLE 61                                                         ______________________________________                                         Test compound  IC.sub.50 (μM)                                               ______________________________________                                         Example                                                                        28             0.48                                                            79             Less than 0.1                                                   85             Less than 0.1                                                   89             Less than 0.1                                                   134            0.49                                                            93             Less than 0.1                                                   143            1.44                                                            70             Less than 0.1                                                   ______________________________________                                    

Preparation Example 1 (Preparation of tablets)

There were prepared, according to the following recipe, 1,000 tablets for oral administration each containing 5 mg of 6-[4-{N-cyclooctylmethyl-N-[2-(4-hydroxy-1piperidinyl)ethyl]amino}butoxy]carbostyril.

    ______________________________________                                                                   Amount                                               Component                 (g)                                                  ______________________________________                                         6-[4-{N-cyclooctylmethyl-N-[2-(4-hydroxy-1-                                                              5                                                    piperidinyl)ethyl]amino}butoxy]carbostyril                                     Lactose (Japanese Pharmacopoeia grade)                                                                   50                                                   Corn starch (Japanese Pharmacopoeia grade)                                                               25                                                   Crystalline cellulose (Japanese Pharmacopoeia                                                            25                                                   grade)                                                                         Methyl cellulose (Japanese Pharmacopoeia                                                                 1.5                                                  grade)                                                                         Magnesium stearate (Japanese Pharmacopoeia                                                               1                                                    grade)                                                                         ______________________________________                                    

That is, there were thoroughly mixed 6-[4-{N-cyclooctylmethyl-N-[2-(4-hydroxy-1-piperidinyl)ethyl]amino}butoxy]carbostyril, lactose, corn starch and crystalline cellulose. The mixture was granulated with a 5% aqueous methyl cellulose solution, and the granules were passed through a 200-mesh sieve and dried carefully. The dried granules were passed through a 200-mesh sieve and mixed with magnesium stearate. The mixture was subjected to press molding to obtain tablets.

Preparation Example 2 (Preparation of capsules)

There were prepared, according to the following recipe, 1,000 two-piece hard gelatin capsules for oral administration each containing 10 mg of 6-[3-{N-benzyl-N-[2-(4-hydroxy-1-piperidinyl)ethyl]aminosulfonyl}propoxy]-carbostyril.

    ______________________________________                                                                   Amount                                               Component                 (g)                                                  ______________________________________                                         6-[3-{N-benzyl-N-[2-(4-hydroxy-1-                                                                        10                                                   piperidinyl)ethyl]aminosulfonyl}propoxy]-                                      carbostyril                                                                    Lactose (Japanese Pharmacopoeia grade)                                                                   80                                                   Starch (Japanese Pharmacopoeia grade)                                                                    30                                                   Talc (Japanese Pharmacopoeia grade)                                                                      5                                                    Magnesium stearate (Japanese Pharmacopoeia                                                               1                                                    grade)                                                                         ______________________________________                                    

That is, the above components were finely ground and thoroughly stirred so as to give a uniform mixture. The mixture was filled into gelatin capsules for oral administration, each having a desired dimension.

Preparation Example 3 (Preparation of injection)

A sterile aqueous solution suitable for parenteral administration was prepared according to the following recipe.

    ______________________________________                                                                  Amount                                                Component                (g)                                                   ______________________________________                                         6-[4-{N-cyclohexylmethyl-N-(2,3-dihydroxy-                                                              1                                                     propyl)amino}butoxy]carbostyril                                                Polyethylene glycol      0.3                                                   (Japanese Pharmacopoeia grade)                                                 (molecular weight: 4,000)                                                      Sodium chloride (Japanese Pharmacopoeia                                                                 0.9                                                   grade)                                                                         Polyoxyethylene sorbitan monooleate                                                                     0.4                                                   (Japanese Pharmacopoeia grade)                                                 Sodium metabisulfite     0.1                                                   Methylparaben (Japanese Pharmacopoeia grade)                                                            0.18                                                  Propylparaben (Japanese Pharmacopoeia grade)                                                            0.02                                                  Distilled water for injection                                                                           100 ml                                                ______________________________________                                    

That is, the parabens, sodium metabisulfite and sodium chloride were dissolved in distilled water of about half of the above volume, at 80° C. with stirring. The resulting solution was cooled to 40° C. Therein were dissolved 6-[4-{N-cyclohexylmethyl-N-(2,3-dihydroxypropyl)amino}butoxy]carbostyril, polyethylene glycol and polyoxyethylene sorbitan monooleate in this order. To the resulting solution was added distilled water for injection to make a final volume. The solution was filtered for sterilization through an appropriate filter paper to prepare an injection. 

I claim:
 1. A carbostyril derivative or salt thereof of the formula (1A) ##STR240## wherein A is a lower alkylene group; R^(A) is a group ##STR241## a group ##STR242## or a group ##STR243## wherein R₁ is a group ##STR244## (wherein l and m independently are 0 or 1, B is a lower alkylene group, and each of R⁷ and R⁸, which may be the same or different, is a hydrogen atom, a lower alkyl group which may have a hydroxyl group, or a lower alkanoyl group or R⁷ and R⁸ may form a five- or six-membered saturated heterocyclic ring together with the nitrogen atom to which they bond and further with or without a nitrogen, oxygen or sulfur atom between R⁷ and R⁸, said heterocyclic ring may have from 1-3 substituents selected from the group consisting of a hydroxyl group, a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group, a lower alkyl group-substituted or unsubstituted amino group, a lower alkoxy-lower alkoxy group, an oxo group and a lower alkyl group-substituted or unsubstituted aminocarbonyl group or said heterocyclic ring may also have a lower alkylenedioxy group as a substituent); or R¹ is a lower alkoxycarbonyl group-substituted lower alkyl group; a carboxy group-substituted lower alkyl group; a lower alkyl group having, as a substituent, a lower alkyl group-substituted or unsubstituted aminocarbonyl group; a hydroxyl group-containing lower alkyl group; an imidazolyl-substituted lower alkyl group; a pyridyl-substituted lower alkyl group; a pyrrolidinyl-lower alkyl group which may have, as substituents on the pyrrolidine ring, from 1-3 groups selected from the group consisting of a lower alkyl group, a lower alkoxy-lower alkoxy group and a hydroxyl group; or a group --SO₂ --D--R⁹ (wherein D is a lower alkylene group and R⁹ is a five- or six-membered saturated or unsaturated heterocyclic ring residue having from 1-3 halogen atoms or nitrogen atoms, said heterocyclic ring may have, as a substituent, a hydroxyl group, a lower alkoxy-lower alkoxy group, a lower alkoxy-carbonyl group, or a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group);R² is a hydrogen atom; a cycloalkyl-lower alkyl group; a cycloalkyl group; a phenyl group; a phenyl-lower alkyl group which may have, as substituents on the phenyl ring, from 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group, a cyano group, a carboxy group and a lower alkoxy group; a pyridyl-substituted lower alkyl group; a thienyl-substituted lower alkyl group; a cycloalkylcarbonyl group; a benzoyl group; a tetrahydropyranyl-substituted lower alkyl group; a phenyl-lower alkylsulfonyl group; a phenylsulfonyl group; or a cycloalkyl-lower alkylsulfonyl group; R¹ and R² may form a pyrrolidinyl group together with the nitrogen atom to which they bond, said pyrrolidinyl group having from 1-2 substituents selected from the group consisting of a hydroxyl group a lower alkoxy-lower alkoxy group, a lower alkyl group having a lower alkoxy-lower alkoxy group or a hydroxyl group, a lower alkoxycarbonyl group, a piperidinylcarbonyl group and a cycloalkyl-lower alkyl group-substituted or unsubstituted aminocarbonyl group; R³ is a hydrogen atom; a lower alkyl group which may have a hydroxyl group; a carboxy-substituted lower alkyl group; a lower alkoxycarbonyl group-substituted lower alkyl group; a group ##STR245## (wherein E is a lower alkylene group which may have a hydroxyl group, n is 0 or 1, and each of R¹⁰ and R¹¹, which may be the same or different, is a hydrogen atom; a lower alkyl group which may have a hydroxyl group; or a lower alkanoyl group, or R¹⁰ and R¹¹ may form a five- or six-membered saturated heterocyclic ring together with the nitrogen atom to which they bond and further with or without a nitrogen, oxygen or sulfur atom present between R¹⁰ and R¹¹, said heterocyclic ring may have from 1-3 substituents selected from the group consisting of a hydroxyl group, an oxo group, a lower alkoxy-lower alkoxy group, a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group, and a lower alkyl-substituted or unsubstituted amino group or said heterocyclic ring may also have a lower alkylenedioxy group as a substituent); or R₃ is a pyrrolidinyl-lower alkyl group which may have, as substituents on the pyrrolidine ring, from 1-3 groups selected from the group consisting of a lower alkyl group, a lower alkoxy-lower alkoxy group and a hydroxyl group; R⁴ is a hydrogen atom; a cycloalkyl group; a cycloalkyl-lower alkyl group; a phenyl-lower alkyl group which may have, as substituents on the phenyl ring, from 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group and a lower alkoxy group; a phenyl group; a thienyl-substituted lower alkyl group; a pyridyl-substituted lower alkyl group; an imidazolyl-substituted lower alkyl group; or a tetra-hydropyranyl-substituted lower alkyl group; Y is a group ##STR246## a group ##STR247## or a group ##STR248## each of R⁵ and R⁶, which may be the same or different, is a hydrogen atom; a lower alkyl group; a cycloalkyl group; a cycloalkyl-lower alkyl group; or a piperidinyl-lower alkyl group which may have, as a substituent on the piperidinyl ring, a lower alkoxy-lower alkoxy group or a hydroxyl group; and W is an oxygen atom or a sulfur atom, the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton being a single bond or a double bond; provided that when W is an oxygen atom and R¹ is a hydroxyl group-containing lower alkyl group, R² is not any of a hydrogen atom, a cycloalkyl group and a phenyl-lower alkyl group which may have, as substituents on the phenyl ring, from 1-3 groups selected from the group consisting of a lower alkoxy group and a halogen atom, and when R¹ and R² form a pyrrolidinyl group, the pyrrolidinyl group is not a pyrrolidinyl group substituted with a hydroxyl group or with a hydroxyl group-containing lower alkyl group.
 2. The carbostyril derivative or its salt according to claim 1, wherein W is an oxygen atom.
 3. The carbostyril derivative or its salt according to claim 1, wherein W is a sulfur atom.
 4. The carbostyril derivative or its salt according to claim 2, Wherein R^(A) is a group ##STR249##
 5. The carbostyril derivative or its salt according to claim 2, wherein R^(A) is a group ##STR250##
 6. The carbostyril derivative or its salt according to claim 2, wherein R^(A) is a group ##STR251##
 7. The carbostyril derivative or its salt according to claim 4, wherein R¹ is a group ##STR252##
 8. The carbostyril derivative or its salt according to claim 4 wherein R¹ is a group --SO₂ --D--R⁹.
 9. The carbostyril derivative or its salt according to claim 4, wherein R¹ and R² form a pyrrolidinyl group together with the nitrogen atom to which they bond and said pyrrolidinyl group has 1-2 substituents selected from the group consisting of a hydroxyl group, a lower alkoxy-lower alkoxy group, a lower alkyl group having a lower alkoxy-lower alkoxy group or a hydroxyl group, a lower alkoxycarbonyl group, a piperidinylcarbonyl group and a cycloalkyl-lower alkyl group-substituted or unsubstituted aminocarbonyl group.
 10. The carbostyril derivative or its salt according to claim 4, wherein R¹ is a lower alkoxycarbonyl group-substituted lower alkyl group, a carboxy group-substituted lower alkyl group, a lower alkyl group having, as a substituent, a lower alkyl group-substituted or unsubstituted aminocarbonyl group; a hydroxyl group-containing lower alkyl group; an imidazolyl-substituted lower alkyl group; a pyridinyl-substituted lower alkyl group, or a pyrrolidinyl-lower alkyl group which may have, as substituent(s) on the pyrrolidine ring, 1-3 groups selected from the group consisting of a lower alkyl group, a lower alkoxy-lower alkoxy group and a hydroxyl group.
 11. The carbostyril derivative or its salt according to claim 7, wherein R² is a phenyl-lower alkyl group which may have, as substituents on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group, a cyano group, a carboxy group and a lower alkoxy group.
 12. The carbostyril derivative or its salt according to claim 7, wherein R² is a hydrogen atom, a cycloalkyl-lower alkyl group, a cycloalkyl group, a phenyl group, a pyridyl-substituted lower alkyl group, a thienyl-substituted lower alkyl group, a cycloalkylcarbonyl group, a benzoyl group, a tetrahydropyranyl-substituted lower alkyl group, a phenyl-lower alkylsulfonyl group, a phenylsulfonyl group or a cycloalkyl-lower alkylsulfonyl group.
 13. The carbostyril derivative or its salt according to claim 8, wherein R² is a phenyl-lower alkyl group which may have, as substituents on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group, a cyano group, a carboxy group and a lower alkoxy group.
 14. The carbostyril derivative or its salt according to claim 8, wherein R² is a hydrogen atom, a cycloalkyl-lower alkyl group, a cycloalkyl group, a phenyl group, a pyridyl-substituted lower alkyl group, a thienyl-substituted lower alkyl group, a cycloalkylcarbonyl group, a benzoyl group, a tetrahydropyranyl-substituted lower alkyl group, a phenyl-lower alkylsulfonyl group, a phenylsulfonyl group or a cycloalkyl-lower alkylsulfonyl group.
 15. The carbostyril derivative or its salt according to claim 9, wherein R² is a phenyl-lower alkyl group which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group, a cyano group, a carboxy group and a lower alkoxy group.
 16. The carbostyril derivative or its salt according to claim 9, wherein R² is a hydrogen atom, a cycloalkyl-lower alkyl group, a cycloalkyl group, a phenyl group, a pyridyl-substituted lower alkyl group, a thienyl-substituted lower alkyl group, a cycloalkylcarbonyl group, a benzoyl group, a tetrahydropyranyl-substituted lower alkyl group, a phenyl-lower alkylsulfonyl group, a phenylsulfonyl group or a cycloalkyl-lower alkylsulfonyl group.
 17. The carbostyril derivative or its salt according to claim 10, wherein R² is a phenyl-lower alkyl group which may have, as substituents on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group, a cyano group, a carboxy group and a lower alkoxy group.
 18. The carbostyril derivative or its salt according to claim 10, wherein R² is a a hydrogen atom, a cycloalkyl-lower alkyl group, a cycloalkyl group, a phenyl group, a pyridyl-substituted lower alkyl group, a thienyl-substituted lower alkyl group, a cycloalkylcarbonyl group, a benzoyl group, a tetrahydropyranyl-substituted lower alkyl group, a phenyl-lower alkylsulfonyl group, a phenylsulfonyl group or a cycloalkyl-lower alkylsulfonyl group.
 19. The carbostyril derivative or its salt according to claim 11, wherein l is 0; R⁷ and R⁸ may form a five- or six-membered saturated heterocyclic ring, together with the nitrogen atom to which they bond and further with or without a nitrogen, oxygen or sulfur atom which may be present between R⁷ and R⁸ ; said heterocyclic ring may have 1-3 substituents selected from the group consisting of a hydroxyl group, a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group, a lower alkyl group-substituted or unsubstituted amino group, a lower alkoxy-lower alkoxy group, an oxo group and a lower alkyl group-substituted or unsubstituted aminocarbonyl group; and said heterocylic ring may also have a lower alkylenedioxy group as a substituent.
 20. The carbostyril derivative or its salt according to claim 11, wherein l is 0 and each of R⁷ and R⁸, which may be the same or different, is a hydrogen atom, a lower alkyl group which may have a hydroxyl group, or a lower alkanoyl group.
 21. The carbostyril derivative or its salt according to claim 12, wherein l is 0; R⁷ and R⁸ may form a five- or six-membered saturated heterocyclic ring, together with the nitrogen atom to which they bond and further with or without a nitrogen, oxygen or sulfur atom which may be present between R⁷ and R⁸ ; said heterocyclic ring may have 1-3 substituents selected from the group consisting of a hydroxyl group, a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group, a lower alkyl group-substituted or unsubstituted amino group, a lower alkoxy-lower alkoxy group, an oxo group and a lower alkyl group-substituted or unsubstituted aminocarbonyl group; and said heterocylic ring may also have a lower alkylenedioxy group as a substituent.
 22. The carbostyril derivative or its salt according to claim 12, wherein l is 0 and each of R⁷ and R⁸, which may be the same or different, is a hydrogen atom, a lower alkyl group which may have a hydroxyl group, or a lower alkanoyl group.
 23. The carbostyril derivative or its salt according to claim 11 or 12, wherein l is
 1. 24. The carbostyril derivative or its salt according to any of claims 13 to 22, wherein the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton is a single bond.
 25. The carbostyril derivative or its salt according to any of claims 13 to 22, wherein the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton is a double bond.
 26. The carbostyril derivative or its salt according to claim 19 or 21, wherein the heterocyclic ring is pyrrolidinyl, piperidinyl, piperazinyl, morpholinyl, thiomorpholinyl, isothiazolidinyl or 3,4, 5, 6-tetrahydro-1,2-thiazinyl.
 27. The carbostyril derivative or its salt according to claim 5, wherein R³ is a group ##STR253##
 28. The carbostyril derivative or its salt according to claim 5, wherein R³ is a hydrogen atom, a lower alkyl group which may have a hydroxyl group, a carboxy-substituted lower alkyl group, a lower alkoxycarbonyl group-substituted lower alkyl group, or a pyrrolidinyl-lower alkyl group which may have, as substituent(s) on the pyrrolidine ring, 1-3 groups selected from the group consisting of a lower alkyl group, a lower alkoxy-lower alkoxy group and a hydroxyl group.
 29. The carbostyril derivative or its salt according to claim 27, wherein R¹⁰ and R¹¹ may form a five- or six-membered saturated heterocyclic ring, together with the nitrogen atom to which they bond and further with or without a nitrogen, oxygen or sulfur atom which may be present between R¹⁰ and R¹¹ ; said heterocyclic ring may have 1-3 substituents selected from the group consisting of a hydroxyl group, an oxo group, a lower alkoxy-lower alkoxy group, a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group, and a lower alkyl-substituted or unsubstituted amino group; and said heterocylic ring may also have a lower alkylenedioxy group as a substituent.
 30. The carbostyril derivative or its salt according to claim 27, wherein each of R¹⁰ and R¹¹, which may be the same or different, is a hydrogen atom, a lower alkyl group which many have a hydroxyl group, or a lower alkanoyl group.
 31. The carbostyril derivative or its salt according to claim 27 or 28, wherein R⁴ is a cycloalkyl group, a cycloalkyl-lower alkyl group, a phenyl-lower alkyl group which may have, as substituent(s) on the phenyl ring, 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group and a lower alkoxy group, or a thienyl-substituted lower alkyl group.
 32. The carbostyril derivative or its salt according to claim 27 or 28, wherein R⁴ is a hydrogen atom, a phenyl group, a pyridyl-substituted lower alkyl group, an imidazolyl-substituted lower alkyl group or a tetrahydropyranyl-substituted lower alkyl group.
 33. The carbostyril derivative or its salt according to claim 29, wherein the heterocyclic ring is pyrrolidinyl, piperidinyl, piperazinyl, morpholinyl, thiomorpholinyl, isothiazolidinyl or 3,4,5,6-tetrahydro-1,2-thiazinyl.
 34. The carbostyril derivative or its salt according to any of claims 28, 29 and 30, wherein the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton is a single bond.
 35. The carbostyril derivative or its salt according to any of claims 28, 29 and 30, wherein the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton is a double bond.
 36. The carbostyril derivative or its salt according to claim 6, wherein Y is a group ##STR254##
 37. The carbostyril derivative or its salt according to claim 6, wherein Y is a group ##STR255## or a group ##STR256##
 38. The carbostyril derivative or its salt according to claim 36 or 37, wherein the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton is a single bond.
 39. The carbostyril derivative or its salt according to claim 36 or 37, wherein the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton is a double bond.
 40. 6-[4-{N-[2-(4-hydroxy-1-piperidinyl)ethyl]-N-benzylamino}butoxy]carbostyril.
 41. 6-{4-[N-(4-hydroxy-1-piperidinyl)carbonylmethyl]-N-benzylamino]butoxy}carbostyril.
 42. 6-[5-{N-[2-(4-hydroxy-1-piperidinyl)ethyl]-N-(2-chlorobenzyl)amino}pentyloxy]carbostyril.
 43. 6-[3-{N-[2-(4-hydroxy-1-piperidinyl)ethyl]-N-cyclooctylamino}sulfonylpropoxy]carbostyril.
 44. 6-[4-{N-[2-(4-hydroxy-1-piperidinyl)ethyl-N-[(2-thienyl)methyl]amino}sulfonylbutoxy]carbostyril.
 45. 7-[4-{N-[2-(4-hydroxy-1-piperidinyl)ethyl]-N-cyclooctylmethylamino}sulfonylbutoxy]carbostyril.
 46. 6-[4-{N-[2-(4-hydroxy-1-piperidinyl)ethyl]-N-(2-chlorobenzyl)amino}sulfonylbutoxy]carbostyril.
 47. 6-[3-{N-[2-(4-hydroxy-1-piperidinyl)ethyl]-N-cyclooctylmethylamino}carbonylaminopropoxy]carbostyril.
 48. A platelets aggregation inhibitory agent containing, as an active ingredient, a carbostyril derivative or salt thereof of claim
 1. 49. A phosphodiesterase inhibitory agent containing, as an active ingredient, a carbostyril derivative or salt thereof of claim
 1. 50. A platelets adhesion inhibitory agent containing, as an active ingredient, a carbostyril derivative or salt thereof of claim
 1. 51. A method for platelets aggregation inhibition, which uses, as an active ingredient, a carbostyril derivative or salt thereof of formula (1) ##STR257## wherein A is a lower alkylene group; R is a group ##STR258## a group ##STR259## or a group ##STR260## wherein R¹ is a group ##STR261## (wherein l and m independently are 0 or 1, B is a lower alkylene group and each of R⁷ and R⁸, which may be the same or different, is a hydrogen atom, a lower alkyl group which may have a hydroxyl group, or a lower alkanoyl group or R⁷ and R⁸ may form a five- or six-membered saturated heterocyclic ring together with the nitrogen atom to which they bond and further with or without a nitrogen, oxygen or sulfur atom between R⁷ and R⁸, said heterocyclic ring may have from 1-3 substituents selected from the group consisting of a hydroxyl group, a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group, a lower alkyl group-substituted or unsubstituted amino group, a lower alkoxy-lower alkoxy group, an oxo group and a lower alkyl group-substituted or unsubstituted aminocarbonyl group or said heterocyclic ring may also have a lower alkylenedioxy group as a substituent); or R¹ is a lower alkoxycarbonyl group-substituted lower alkyl group; a carboxy group-substituted lower alkyl group; a lower alkyl group having, as a substituent, a lower alkyl group-substituted or unsubstituted aminocarbonyl group; a hydroxyl group-containing lower alkyl group; an imidazolyl-substituted lower alkyl group; a pyridyl-substituted lower alkyl group; a pyrrolidinyl-lower alkyl group which may have, as substituents on the pyrrolidine ring, from 1-3 groups selected from the group consisting of a lower alkyl group, a lower alkoxy-lower alkoxy group and a hydroxyl group; or a group --SO₂ --D--R⁹ (wherein D is a lower alkylene group, and R⁹ is a five- or six-membered saturated or unsaturated heterocyclic ring residue having from 1-3 halogen atoms or nitrogen atoms, said heterocyclic ring may have, as a substituent, a hydroxyl group, a lower alkoxy-lower alkoxy group, a lower alkoxycarbonyl group, or a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group);R² is a hydrogen atom; a cycloalkyl-lower alkyl group; a cycloalkyl group; a phenyl group; a phenyl-lower alkyl group which may have, as substituents on the phenyl ring, from 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group, a cyano group, a carboxy group and a lower alkoxy group; a pyridyl-substituted lower alkyl group; a thienyl-substituted lower alkyl group; a cycloalkylcarbonyl group; a benzoyl group; a tetrahydropyranyl-substituted lower alkyl group; a phenyl-lower alkylsulfonyl group; a phenylsulfonyl group; or a cycloalkyl-lower alkylsulfonyl group; R¹ and R² may form a pyrrolidinyl group together with the nitrogen atom to which they bond, said pyrrolidinyl group having from 1-2 substituents selected from the group consisting of a hydroxyl group, a lower alkoxy-lower alkoxy group, a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group, a lower alkoxycarbonyl group, a piperidinylcarbonyl group and a cycloalkyl-lower alkyl group-substituted or unsubstituted aminocarbonyl group; R³ is a hydrogen atom; a lower alkyl group which may have a hydroxyl group; a carboxy-substituted lower alkyl group; a lower alkoxycarbonyl group-substituted lower alkyl group; a group ##STR262## (wherein E is a lower alkylene group which may have a hydroxyl group, n is 0 or 1, and each of R¹⁰ and R¹¹, which may be the same or different is a hydrogen atom; a lower alkyl group which may have a hydroxyl group; or a lower alkanoyl group, or R¹⁰ and R¹¹ may form a five- or six-membered saturated heterocyclic ring, together with the nitrogen atom to which they bond and further with or without a nitrogen, oxygen or sulfur atom present between R¹⁰ and R¹¹, said heterocyclic ring may have from 1-3 substituents selected from the group consisting of a hydroxyl group, an oxo group, a lower alkoxy-lower alkoxy group, a lower alkyl group which may have a lower alkoxy-lower alkoxy group or a hydroxyl group, and a lower alkyl-substituted or unsubstituted amino group, or said heterocyclic ring may also have a lower alkylenedioxy group as a substituent); or R³ is a pyrrolidinyl-lower alkyl group which may have, as substituents on the pyrrolidine ring, from 1-3 groups selected from the group consisting of a lower alkyl group, a lower alkoxy-lower alkoxy group and a hydroxyl group; R⁴ is a hydrogen atom; a cycloalkyl group; a cycloalkyl-lower alkyl group; a phenyl-lower alkyl group which may have, as substituents on the phenyl ring, from 1-3 groups selected from the group consisting of a halogen atom, a lower alkyl group and a lower alkoxy group; a phenyl group; a thienyl-substituted lower alkyl group; a pyridyl-substituted lower alkyl group; an imidazolyl-substituted lower alkyl group; or a tetra-hydropyranyl substituted lower alkyl group; Y is a group ##STR263## a group ##STR264## or a group ##STR265## each of R⁵ and R⁶, which may be the same or different, is a hydrogen atom; a lower alkyl group; a cycloalkyl group; a cycloalkyl-lower alkyl group; or a piperidinyl-lower alkyl group which may have, as a substituent on the piperidinyl ring, a lower alkoxy-lower alkoxy group or a hydroxyl group; and W is an oxygen atom or a sulfur atom, the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton being a single bond or a double bond.
 52. A process for producing a carbostyril compound of claim 1 comprising reacting a compound (4) represented by general formula (4) ##STR266## wherein W and the carbon-to-carbon bond between the 3- and 4-positions of the carbostyril skeleton have the same definitions as defined in claim 1 with a compound (5) represented by general formula (5)

    X--A--R.sup.A

wherein X represents a halogen atom, a lower alkanesulfonyloxy group, an arylsulfonyloxy group or an aralkylsulfonyloxy group and A and R^(A) have the same definitions as defined in claim 61 in an appropriate solvent in the presence of a basic compound used as a dehalogenating agent. 